The RovAir compressor is a gun-only compressor that’s light, fast and inexpensive.
This report covers:
- Shoebox
- A long test
- Gun only
- Setup
- Read the manual
- Auto shutoff
- Mistake
- Brother-in-Law
- Operation
- That said…
- Summary
Today we start looking at the The Air Venturi RovAir portable compressor. It’s an affordable compressor that fills to 4500 psi.
Sometimes people ask me where I get all the ideas for the blogs. They can be hard to come up with at times, but at other times they knock me down and beat me over the head. Today is such a time.
Shoebox
Two weeks ago I invited a guy to my house to look at his Shoebox Freedom 10 compressor. I know almost nothing about the Shoebox, but I thought perhaps two heads were better than one. I prepared a supply of soapy water to look for leaks.
There were no leaks, but that Shoebox only got up to 2950 psi and the pressure stopped building. As we watched it working, the link that drives the two pistons flew off and the compressor was toast. After that, the owner detected that the post where the piston rod guides were anchored was slightly bent and that is why the link flew off. For some reason this Shoebox was working too hard and bent the post. No more Shoebox.
The Shoebox company is still in business, but they no longer deal with the public, so parts and assistance are whatever you can find online. The guy just wanted to fill his precharged air rifles. His wife said if the Shoebox wasn’t fixed he had to go back to the hand pump. One of his rifles is an AirForce Texan, and I wouldn’t wish that fate on anyone — pumping for 12-15 minutes for three shots!
I remembered a new small compressor I’d seen in the Pyramyd booth at this year’s SHOT Show, so I went online and looked. There is was — the Air Venturi RovAir portable compressor. And it was only $500. Wow! But is it any good?
The guy went home, but I was intrigued, so I emailed Tyler Patner and asked. There are actually two compressors at this price; the other is the COMP1 from JTS. I asked about both. Tyler told me both compressors are great. He favors the AirVenturi one because of where he works, but he said both compressors are great. I remember his telling me at the SHOT Show that the RovAir filled airguns just as fast as the Nomad II compressor, and that one costs almost $300 more! I tested the Nomad II for you in the winter of 2018/2019 and found it to be fine. But my test wasn’t a long one.
A long test
I need compressed air all the time. I fill my own PCPs and also PCPs for other people who live close. I have an older version of the Krypton compressor that is as solid as an anvil, but if it ever needs maintenance I’m out of luck. Why not buy a RovAir compressor and give it a really long test? So, that’s what I did. I emailed the guy with the broken Shoebox to watch my reports, but at just $500 his wife saw the utility of the RovAir and told him to get one. His arrived a couple days after mine.
Gun only
These compressors are for filling airguns only, not tanks. But they operate on either household current (both can use either 110 or 220 VAC) or 12-volt car current, so they can be taken almost anywhere you need to go. And the RovAir is both small and lightweight. It weighs just 19 pounds, which is just a bit more than two gallons of water. It has a carry handle on top and it feels very portable to me. It has two air fans, so no water is needed to cool the compressor.
Setup
After watching the guy set his Shoebox compressor up, with the separate shop compressor feeding in with hoses going into and coming outta here and there, I figured the RovAir might be difficult to set up. Yeah — it’s about as difficult as eating a donut! Let me show you.
I opened the box and slid the top tray sideways to show the compressor.
The compressor is out of the box. I’m saving this box for any shipping I need to do.
The box the compressor came in is very sturdy and is lined with foam to hold the RovAir. My neighbor, Denny, has convinced me to toss most boxes, but I’m keeping this one, just in case. It’s a perfect custom fit!
Read the manual
My next step was to read the manual. I know — it invalidates my man card for a time, but as I said before, I figured this compressor might be complex to get going.
It was extremely complex — just like I thought! I had to attach the power cord and then the air hose. Oh, save me Miss Scarlet! I don’t know nothin’ about birthin’ no babies!
Attach the end of the fill hose (white arrow) to the male air output on the RovAir (blue arrow). Attach the power cord and you’re finished.
Okay, setup was simple. Operation is where it’s gonna get me — right? Yeah — connect the fill hose to your airgun, then turn the compressor on (red switch) and push the green Start button.
Set the dial (bottom left) to the desired fill pressure shutoff, and push two buttons. That’s it!
I did that and what to my wondering eyes did appear but a working air compressor!
The RoveAir fills the Avenge-X. It doesn’t get much simpler than this.
Auto shutoff
I read in the manual that the RovAir has an automatic shutoff, but I wasn’t prepared for the blast when the compressor stopped. At the end of the fill it blew off all the air in the hose and shut off the compressor. I thought that was different. The compressor part of the unit stops but the cooling fans continue to run.
Mistake
But that wasn’t the auto shutoff. That was a burst disk that blew at the EXACT fill pressure I was shooting for (4350 psi for the Avenge -X)! What are the odds? Well, it makes for a better report. I called tech support at Pyramyd Air and Pat said he thought it was a burst disk, as well. Fortunately there are three spare ones in the kit of parts and tools that come with the compressor. I unscrewed the safety valve cap, and replaced the disk in about two minutes.
A new burst disk and the failed one. Drop the good one down the threaded hole.
The small parts that comes with the RovAir. There are other things not shown here like moisture filters, DC battery cables, etc. It’s an indication that an airgunner was involved with this compressor project.
It took me a total of two minutes to find a fresh burst disk and replace it in the RovAir. It’s about as difficult as changing batteries in a flashlight. I used a dental pick to remove the old disk but a bent paper clip would work as well. The new one just drops in.
Then I filled Crosman Icon from 150 to 200 bar in 1 minute 32 seconds. This time the compressor just stopped as it should — no pop. Problem solved!
Brother-in-Law
By the way, I haven’t finished my story of why this is today’s report. This morning I got the following text from Bob, my brother-in-law.
“Hi Tom. I still have an interest in a PCP airgun but I have a concern about compressing the air. You can buy a large compressor and tank at Harbor freight for less than $300. I have a 3 hp compressor in the garage that I bought many years ago for air tools I use to work on my vehicles. The commercial air pumps for air guns are sometimes called “shoebox” size and are small. Has anyone ever converted or modified inexpensively one of these big compressors to fill an air gun? I realize you have to remove the moisture from the air but this would open up a lot of new people to the hobby with these inexpensive compressors that you can buy used on craigslist. Is it true that size matters???”
Bob, with compressors like the RovAir and the one from JTS you don’t need a large shop compressor to be modified. Also, the big air tank on a shop compressor is made to hold perhaps 150 psi — not 4,500 psi! Save some money, skip that idea and go straight to the solution. Get one of these.
Operation
This puppy is quiet! I mean, unless you live with the princess who was bothered by the pea, you aren’t going to mind the noise of the RovAir! It goes pocka-pocka-pocka like a Shoebox only slower and quieter. There is no significant noise.
The manual says nothing about letting the fans run after the compressor stops. I always do that with other compressors. I felt the air coming out of the two fan outlets and it was only slightly warm, but I still ran the fans five minutes after the compressor stopped.
The Avenge-X I was filling was at 200 bar at the start and I filled to 300 bar. It took right at 4 minutes 50 seconds. If you leave the room for something listen for near total quiet.
And did I mention that this unit is all you need? It doesn’t need a separate air compressor in front of it like the Shoebox does.
That said…
I’m not telling anyone to abandon their Shoebox compressor if it’s working. If it is and if you don’t mind the maintenance, keep doing it your way. Even if you have one of those unsupported Chinese compressors from eBay that reader GunFun1 used to talk about and you don’t mind the repairs and the five gallon cooling water bucket, don’t buy one of these. But, if you want to get into the PCP game and start from scratch I can’t think of a cheaper, and simpler way to go that’s supported by a reputable dealer.
Is it reliable? Well, I bought this one to find out. I’m going to test the heck out of this one in the coming months and years. I will mention it in other reports so you know what’s happening. And I do plan on a Part 2 where I run it off my truck battery.
Summary
Today we looked at the AirVenturi RovAir portable air compressor. If you are thinking of getting a compressor — watch this space!
B.B.,
Why the RED ZONE from 3,000+ PSI since the compressor is rated for 4,500PSI fills?
Hope you have jumper cables or a Line Power or Battery Power Jump device for your truck and/or a good battery. Been reading about to many folks with weak batteries stuck out at trailheads with DEAD as a Doornail batteries.
Looking forward to part 2 and some 4,500PSI fills.
shootski
shootski,
Never use ANY compressor connected to your battery without idling your vehicle. I said that in the Nomad II review and I will say and do that when I write about this one.
BB
Shootski,
This is precious advice! Not only such a compressor but all “strange stuff equipment”. I saw many times during camping guys pumping up some big swiming things with air with a big smile on their faces and when the time came – dead end, can’t start the engine…
Good idea is to have one extra battery only for this purpose 🙂
Tom,
We know the disc burst at the pressure you set it to cut off and it was easily replaced. But, what was the cause of it bursting? A “substandard” burst disc? Or a mislabeled/over rated burst disc?
Siraniko
BB
Seems as I have two rifles needing seals replaced. I think I can manage the hatsan bt65, but may need someone to walk me through the texan.
The RovAir is awesome. Thank you.
Everyone,
Oldkid67 is the guy whose Shoebox bit the dust.
BB
Siraniko,
Yes, a substandard disk. These disks are nominally rated for 5,000 psi, but all they are, are thin brass plates. Somethings they are ever-so-slightly too thin, and this happens. It happens with ALL items protected by burst disks.
This one happened in such a way as to fool me because it aligned so perfectly with the pressure setting I had preset. I showed it to let everyone know what it sounds like and how to correct it.
BB
Does that little circle of brass shoot out of the compressor or does it vaporize? If the former, do you have to keep that side of the unit pointed in a safe direction?
Thanks for the timely report. I just unboxed my new (to me) Discovery last night (no hand pump included). I may just put this pump on the Christmas list. Does it come with an adapter for inflating car and bike tires? What is the lowest pressure it can be set to? I may have to pitch this as a multiple use item. Does it also slice bread? ;o)
Sorry for all the questions.
Roamin,
Ask away! Questions are what this comments section is for.
That little plug of brass cannot escape the burst disk housing (a specially-machined bolt) because of how it is made. The escape hole for the air is on the side of the burst disk bolt. Tell you what. I’ll show a picture of that bolt (maybe two) in my next report on the RovAir.
The RovAir would be IDEAL for a Discovery! At only 2,000 psi, it’s hardly working up a sweat!
BB
Thank you! I will still need to replenish the airgun fund from recent and planned purchases, so a hand pump is planned for the near term, but hopefully it will be relegated to a back up pump relatively soon.
I have a rechargeable car battery charger/jumper that has a 110 outlet. Would that work with this unit for a portable solution at the shooting range?
Roamin,
If your vehicle is used to power this compressor then idle the vehicle while the compressor is working.
I don’t know how your “rechargeable car battery charger/jumper that has a 110 outlet” works, but if the car battery is being used, idle the car during operation of the compressor.
Read this report.
https://www.pyramydair.com/blog/2019/01/air-venturi-nomad-ii-air-compressor-part-2/
BB
BB-
Could you please show us the business ends (plug in) of the power cords for 110 v and 220v? Thank you.
Paco,
I will show the end that plugs into the unit later today. To run at 220 the owner removes the cover of the unit and changes things on the internal power supply. The plug end that attaches to the unit remains the same.
Are you a 220 VAC user?
BB
If this sells in Europe, does it will it come with a different plug end or adapters?
Paco, I know that adapters are readily available here.
Roamin,
Well, YEAH!
Each European country had their own plugs, until they standardized. When you go to Europe you can buy adaptors for the European Union, plus adaptors for older UK and different countries where the wall sockets haven’t been updated.
Last time I went to Germany (2006) I took an adaptor set, but the German places I stayed were all modern hotels that use the EUC plug.
BB
Roamin Greco,
If it is sold in Europe or anywhere else it will come ith an entirely different power cord supplied with the plug fotr that country or (EU) region. It will fit the power input fitting that B.B. show in the picture below in Paco’s answer. Just like on old-time printers and computers.
shootski
Tom-
I would probably use this on 110 volt for the portability factor. I just couldn’t see from the pictures how they were achieving dual AC voltage. Thank you.
Paco,
Here you go — the inlet for the power cord.
BB
BB,
“And did I mention that this unit is all you need? It doesn’t need a separate air compressor in front of it like the Shoebox does.”
Separate air compressor? Did you mean separate transformer?
Which rifle were you filling when the burst disk blew out, the Avenge-x or the Icon?
“Oh, save me Miss Scarlet!…” Lol, I gotta add that to my repertoire 🙂
Bob,
The SHOEBOX compressor is what I was referring to. It needs a separate shop compressor in front of it because it isn’t a stand-alone air compressor; it’s a booster.
I was filling the Avenge-X when the disk blew (4350 psi).
BB
Tom,
I just want to clarify for readers that while many people call the Shoebox compressor a “booster” (because it boosts the pressure up from a shop compressor) that it is very different from a traditional booster pump. Most “boosters” use the compressed air itself to power the booster – they are not electrically powered compressors.
I prefer to consider the Shoebox to be a three stage compressor, but with the first stage provided by a separate shop compressor. When Tom Kaye created the original Shoebox, he made this a conscious choice because shop compressors are so good at what they do and so affordable that it would be a great savings to leverage them in the design, and he was right. All of these low cost gun-filling compressors are 2 stage, and that is part of what limits them (each stage has a massive compression ratio of around 17:1 vs. the more normal one of around 7:1 in the Shoebox).
This design made it easy to feed pre-dried (and cooled) air that was already at ~8 bar into his compressor, delivering 300 bar output in two more stages with much less strain on the compressor. As a result, the Shoebox compressors are great for filling tanks as they can run pretty much on their own for up to ten hours at a stretch (with the auto oiler on them, as they were later equipped).
I prefer to fill my guns from a tank because it only takes seconds and is silent, except for venting the line. I like my Shoebox so much that I bought a lightly used one to have as a backup in case mine ever dies – but it’s now nine years old, has run for about 300 hours, and still works flawlessly. Hopefully I’ll never need anything else – but if I do it will be a compressor that can fill tanks. And even then, I’ll probably never be without a shop compressor anyways, as it is such a great tool on its own.
Alan
Alan,
Thanks for that.
Like I said in the text, I know almost nothing about the Shoebox. This event is the one and only time I’ve seen one in operation. I have heard that they will run for hours, but the one and only time I have seen one operate, the operator had to be standing by to keep the pressure in the shop compressor where it needed to be.
Question for reader Oldkid67 who probably wants to repair his Shoebox. The rear vertical post that the piston guide rods slide past is bent. Are such parts available, or does he need to buy a donor Shoebox to fix his? Or is his now a donor Shoebox?
BB
BB.
I’m done with it, truthly I’ve not even taken it out of the truck yet.
Oldkid67,
Then it’s a parts Shoebox? It seems there are several (at least one for sure) on this blog who use them and might want a nice parts compressor to back up their main one.
And, did you read the email I sent you regarding your Texan?
BB
Just did. Of course we will have to talk watches some.
Oldkid67,
That goes without saying!
BB
BB
Seems as I have two rifles needing seals replaced. I think I can manage the hatsan bt65, but may need someone to walk me through the texan.
The RovAir is awesome. Thank you.
Yes. Anyone needing a parts unit, let me know.
AlanMcD,
Totally corect description.
I’ll take your information on pressure sources a step further to clear up just what a BOOSTER actually can do.
With a Booster if you have a Shop type compressor that outputs 60-150 psi you run the booster with that air pressure as the booster input. The higher the PSI the faster the booster will deliver a very high pressure charge.
The REAL beauty of a Booster is if you are at a remote location with no electrical power; think many hunting camps some ranges. If you have two or more cylinders the pressure in them drops quickly when filling big bores to the point it gets too low to be used, say 2,800PSI. You should cascade and fill from two bottles at first. Fill airguns first from the lower pressure cylinder and then top off from the higher pressure bottle to get the most efficient use of the avilable pressure. But you can also use the pressure from a cylinder with low (say 2,000PSI) pressure to power a Booster. It will run on that low pressure and compress some of that air to 4,500PSI (easily) to recharge an airgun or even your high volume cylinder.
It sound complex until you have done it a few times but in the early days of the Dark Side it sure helped keep the cylinder logistics to, and in, hunting camps or at remote ranges easier.
Most of that logistics train is no longer needed with advances in power sources in the field and at ranges.
Count your blessings and all ya’all come to the Dark Side!
shootski
Alan,
Wow, that’s fascinating to hear that a small compressor like the Shoebox can be run for hours and used to fill tanks!
It would be great if someone were to design a small compressor with two modes of operation: Standalone mode for filling guns only, and tandem mode for filling tanks when connected to a shop compressor.
That would be the best of both worlds.
BB,
Thanks for clarifying. I have a compact 4500 psi compressor that has a separate transformer and thought the RovAir might have been a similar set-up.
Bob,
That’s an oft-quoted line from the movie, “Gone With the Wind”. Butterfly McQueen, as the character Prissy said it.
BB
BB,
The line sounded vaguely familiar. I need to watch that movie again, and also the other classic that was made the same year, “The Wizard of Oz” (a movie with deeper meaning than most people realise).
B.B.
Lets see, one fill, one burst disk. Ratio of one-to-one. How many disks are included in the kit? How can you buy extras? Why can you not fill a bottle? Can it fill an extra large bottle attached to the gun?
Yesterday’s report and today’s got me thinking if filling with pure nitrogen might offer extra umph (scientific term), for PCP’s. It is what racing cars fill their tires with….
-Y
Yogi,
No gun-only compressor can fill a separate air tank on one go. They cannot work that long because they heat up. But they are perfect for filling airguns only, and that applies to ALL gun-only compressors.
Pure nitrogen doesn’t make any difference in velocity, or if it does it’s less than 50 f.p.s. Racers fill their tires with nitrogen to keep them cooler — that’s all.
You sound interested. Are you thinking of getting into PCPs? 🙂
BB
HECK NO!
-Y
B.B.
All the PCP guys at the range say that the first thing to buy is a large carbon tank.
So this compressor would be like being up creek with only a tennis racket as a paddle.
Better than nothing, but not by much…
-Yogi
Yogi,
Yes, a carbon fiber tank is very handy, but the reader who inspired this report owns a hand pump and a Shoebox compressor.
These small gun-only compressors are a new direction in which PCP owners are moving.
Can you shoot it tethered?
Could you fill a CF tank if you ran it for 5 minutes, let it rest for 10 repeat, till full?
Otherwise wait till they have a small home compressor that can fill a big tank.
With the progress being made you may only have to wait a blink of the eye….
It sounds helpful but not a problem solver.
How long is the warranty? How long till it needs to be resealed or other major maintenance?
-Yogi
Yogi,
By tethered you mean the RovAir would be connected permanently to the inlet of the PCP?
Yes, carbon fiber tanks can be filled incrementally. Shoebox owners talk about doing it. The RovAir could certainly do the same, as long as it was allowed to cool between efforts. But it would be like making your mortgage payment with loose change.
BB
Yogi,
All you ever wanted to know about why some Dark Siders use Nitrogen!
The debate rages on to this day…Lol!
As far as tires and Nitrogen fills. If you don’t deflate your cars tires regularly they will eventually be filled with mostly Nitrogen. The Oxygen leaks out through the tire’s sidewalls.
Racing tires don’t last long and Nitrogen keeps them for “burning” up at the higher operating temperature. Nitrogen is used to tune Suspension Struts and is a little safer to store in the Pits as well.
shootski
BB, I have an EGO Power Nexus Escape (400 watt power inverter) which will power 120-volt devices from the EGO power tool batteries that I use for yard maintenance. I bought it for back up power for lights, etc in case of a power outage, etc. Also for powering some devices when out in the woods, etc. Can you tell us what the power draw for the compressor is? If it is 400-watts or less the EGO inverter might be able to power it for a short while. Thanks!
Elmer,
I thought I read somewhere that the RovAir draws 350 watts. And I did! It’s on the data plate that’s on the machine.
BB
Thank you vewy much! I know that the instantaneous amp draw during start of the electrical motor will be much greater. The EGO inverter is rated to handle up to 800-watts of starting power. If anyone is able to determine the maximum instantaneous starting power requirements I would be grateful. Looking promising, but I will try to find a rule of thumb for the starting power just for good measure.
Elmer,
When you plug in the compressor with nothing turned on, the small fan in the power supply turns on. You first step is to turn on the compressor cooling fans. After that you turn on the compressor, so the power ramp up in not that large.
BB
Thanks again. Yes that sequence should help. Car batteries aren’t as heavy as they used to be. So, that should be another option if the EGO inverter isn’t enough. But I think that it just might work. I’ll be staying tuned-in to see how your experience with the car battery goes…
Dear Elmer,
I don’t know about filling PCPs but do know about draining vehicle batteries. You’ll want the car engine ON while running this pump, even when powered through an inverter. 350W is like leaving the headlights on and radio blasting, which we may all have experienced can drain a little car battery in tens of minutes (say, a few fills) especially if it is an “iffy” battery to begin with. Car alternators can easily cover the extra 30 amps at idle to power this pump. Think of running the pump off the alternator, not the battery.
Cheers,
Mike
Elmer, there are a few small portable gun only compressors that do use power tool batteries directly, Iike Dewalt, Ryobi or Mikita batteries.
They connect direct to the compressor just like they connect to a drill or angle grinder, or the battery charger.
I have never used one, but have seen them in operation.
Ian.
Thanks that sounds vewy practical.
BB
I have been using a gun fill only stand alone compressor since March to keep 3 PCP’s filled. It weighs 15 pounds (6.9 kgs) and has similar capabilities except there is no automatic shut off. Not a problem for me because it only takes watching a few minutes and I wouldn’t trust the shutoff anyway. The manual says to let the fans run for several minutes after filling. I do heed the advice from you, Shootski, Gunfun and other enablers about avoiding heat buildup and controlling moisture with a drop or two of non petroleum oil in the gun’s fill hole. One thing more; on days when scope lens fog up when taken outdoors I don’t use the compressor.
Deck
Deck,
You were delicate to not mention whose compressor you use. I see many on eBay that look a lot like the ones sold by established dealers, only they are straight from China and around $100 cheaper. Do you have one of those?
Has it been reliable? If you have had problems will you share what they have beem?
BB
BB
Yes, it is one of those and I bought an extended warranty through Amazon. No problems so far and almost idiot proof to operate. I will let you know if and when I have problems.
Deck
Deck,
I guess if you buy the right one you have the support of the branded compressors. I don’t know that — just guessing.
BB
BB
If the compressor should fail I would rely on Amazon for the warranty. I will let you know how that goes too if that happens.
Deck
BB
Are you figuring on getting an hour meter or just keeping a tally of your run times?
How much preventive maintenence is required?
rk
rk,
There is next to no preventive maintenance for this unit. But like the burst disk — when it fails you fix it. That’s one reason I showed that.
BB
Pyramyd Air is missing the boat by not carrying an even cheaper, portable compressor that runs on a makita style, rechargable battery (truly a portable unit that doesn’t need to be connected to a car battery) and can also run on 110v. These compressors have been out for 2 years and have received high marks.
These units are sold as the Omega Pocket Charger and rebadged as the GX PUMP E-L2 Portable 18V Cordless PCP Air Compressor,4500Psi/300Bar, Oil-Free, Powered by 1 x 7.8Ah Lithium-Ion Battery (Included) or 110v to 18V Converter (Sold Separately) for Home Outlet.
They can be found for around $300.00
Hi BB,
I have a large SCUBA capable compressor and was given a broken Air Force compressor that is no longer made. With Ton’s help I was able to get the Air Force compressor working and used it for quite a while before it quit working again. I found an electronics repairman who quickly repaired a faulty connection on a circuit board and it is working again. It’s funny that it is more fun for me to use the Air Force compressor that my large compressor. My only complaint with the Air Force compressor is that it is fairly heavy for it’s size. I use the large compressor more because you can’t beat the convenience of filling from a tank. But, if I had guns that needed to be filled to close to 4500 psi a small compressor to gun system would be preferable.
I wonder when tanks and compressors rated to something like 6000 psi will be available to make filling guns to high pressures from a tank more feasible?
David Enoch
David Enoch,
What a great question you have asked about the future of compressors.
It’s become common place that airguns can/should be filled to 4500 psi for fulfillment of their potential. Now we’re seeing a 5000 psi capability. What is next? 6000 psi?
It’s encouraging to me that manufacturers of compressors for airguns are providing economical options but they have always lagged behind fill pressures of new airgun innovations that require higher fill pressures to fullfill their potential.
Don’t know who said it first but, and I’m paraphrasing, that “air is free until you need to compress it to 4500 psi”.
Airgun manufacturers are in a race to higher pressures, I have a friend in Louisiana who uses 6k nitrogen tanks in a cascade to fill his 4500 tank. It’s cheaper for a vendor to bring him more full tanks when his get to low, than buy a compressor and have to maintain it.
While the race is to higher pressures ( to the uninitiated higher pressure numbers sell just like higher velocity numbers sell.) we still only use 1200 to about 2200 psi on most regulated guns at the valve.
On the big bore guns we are using 2900-3000 at the valve.
My question is what’s going to be the next design change in Airguns that will allow us to break through that 3000 ish psi barrier at the valve.
Mull this over the Giradoni big bore repeater from the 1790’s only filled to 800ish psi, and got well over 20 shots per fill, now we get maybe 5 useable shots from a 3000 psi big bore, and it’s done by 2000 psi.
Ian.