Umarex Air Javelin airbow: Part 5

by Tom Gaylord
Writing as B.B. Pelletier

Umarex Air Javelin
The Air Javelin from Umarex.

Part 1
Part 2
Part 3
Part 4

This report covers:

  • Quick review
  • More arrows
  • Setup
  • Sight in
  • At 10 meters
  • At 20 meters
  • Raise the sight
  • Summary

Today I shoot the Umarex Air Javelin at 20 meters with a dot sight that has been sighted in. You finally get to see the sort of accuracy that I saw at the SHOT Show in January. The range there was set up for about 25 yards and it seemed like the arrows all went to nearly the same place! You will see that today.

Quick review

Part 4 was a test with a dot sight too, but I also tested the Umarex CO2 adaptor that allows you to use two 12-gram CO2 cartridges. Unfortunately the Tasco Pro Point dot sight I used for that test could not achieve the elevation that was needed to hit the target at 20 meters. I also shot wide of the target bag when I shot an arrow that had been damaged in the rear from a Robin Hood. I didn’t know it was damaged until I pulled it from the fence and examined its base. read more

Umarex Air Javelin airbow: Part 4

by Tom Gaylord
Writing as B.B. Pelletier

Umarex Air JavelinThe Air Javelin from Umarex.

Part 1
Part 2
Part 3

This report covers:

  • More to test
  • What are the holes for?
  • Remove the old 88-gram cartridge
  • Lots of gas!
  • Install the adaptor
  • Cock the gun!
  • Don’t do as BB does!
  • Adjust the dot sight up
  • Discussion
  • Summary

Today I shoot the Umarex Air Javelin with a dot sight optic. My UTG Reflex Micro  Dot was mounted elsewhere so I mounted a Tasco Pro Point red dot sight. 

Air Javelin dot sight
The Air Javelin accepted the Tasco Pro Point without a problem.

More to test

I didn’t tell you this but I asked Umarex to send me a 12-gram CO2 adapter so I could test the AJ with 12-gram cartridges. Some readers had asked about that possibility and since Pyramyd Air doesn’t carry the adapter, I went straight to Umarex.

Air Javelin 12-gram adapter
Several Umarex airguns including the Air Javelin use this adapter that switches the power source from 88/90-gram CO2 cartridges to 12-gram cartridges.
read more

Sen-X AR-6 Tactical Arrow Repeating Crossbow: Part 3

by Tom Gaylord
Writing as B.B. Pelletier-

Sen-X AR-6
Sen_X AR-6 Tactical Arrow Repeating Crossbow.

Part 1
Part 2

This report covers:

  • Sights
  • Dot sight
  • Vibration
  • Safety
  • Hunting limb
  • Sight-in
  • Group
  • Damage to one arrow
  • Stopped at this point
  • Observations
  • Fletching
  • Next test
  • Summary

Wow! It has taken me a looooong time to return to the Sen-X AR-6 Tactical Arrow Repeating Crossbow. Most of the reason for the delay was the weather that never quite cooperated, but when I tried to do a test at the end of February the problem became something else altogether.


In Part 2 I showed you that the sights on the bow are primitive. There is a front post, but in the rear there is nothing to align it with except the silver spring latch on the magazine cover. There is a red laser built into the AR-6, but it cannot be seen in daylight beyond about 10 feet. With just those crude sights I managed to shoot the bow fairly well, but I wondered what better sights would do. read more

Umarex Air Javelin airbow: Part 3

by Tom Gaylord
Writing as B.B. Pelletier

The Air Javelin from Umarex.

Part 1
Part 2

This report covers:

  • Before we begin — the inside diameter of the gas tube
  • The test
  • Setup
  • First shot
  • Aiming
  • Loading
  • Shot away!
  • Move target to 11 meters
  • Shot two
  • Shot three from 10 meters
  • Back up to 17 meters
  • Adjusted the rear sight one last time
  • Shots 5 and 6
  • End of the test
  • Shots 7 and 8
  • Summary

Today I shoot the Umarex Air Javelin airbow for accuracy. I know that a lot of readers have been waiting for this! This will be an accuracy test, but as I said before, the AJ is such an important shooter that this report is going to proceed along different lines.

Before we begin — the inside diameter of the gas tube

Oh my, have some readers obsessed over this! They are busy redesigning the AJ the way it should have been, if only Umarex engineers were smart enough to have recognized it! I hear from AirForce all the time that they wish they were as clever as the people who redesign their airguns. But they know they aren’t, so they just let it ride. read more

Umarex Air Javelin airbow: Part 2

by Tom Gaylord
Writing as B.B. Pelletier

Umarex Air Javelin
The Air Javelin from Umarex.

Part 1

This report covers:

  • However
  • The “barrel”
  • Not a toy!
  • Sights
  • Front sight
  • Rear sight
  • Adjust the stock
  • Install the cocking handle
  • Charging
  • One fact to bear in mind
  • Summary

At least one of you readers is really interested in the Umarex Air Javelin, just as I am, so today is Part 2. However, because this is an arrow launcher, this Part 2 will be a little different. I normally test velocity in Part 2, but the Air Javelin is better tested outdoors for that and today the temperature here in sunny Texas is 36 degrees, F. Yes, we have bright sunshine and the temp is supposed to rise to 62 late this afternoon, but my testing and photography work gets done in the morning, so the cold is hampering me.


That doesn’t mean I can’t shoot the Air Javelin (hereafter called the AJ) indoors. In fact, by shooting it indoors I will get a really good idea of how loud the report is. Remember that I could not hear it when I shot it at Industry Day at the Range in January. I’m making this report up as we go, so let’s get going! read more

Air Venturi Air Bolt: Part 2

by Tom Gaylord
Writing as B.B. Pelletier

Air Venturi Air Bolts
Air Venturi Air Bolts turn a .50 caliber big bore into an air bow.

Part 1

This report covers:

  • Power!
  • Broadheads
  • Velocity
  • Accuracy
  • Penetration
  • More to come

Today we take our second look at the Air Bolt from Air Venturi. I may not have written much about it, but I have been demonstrating it to the public and shooting it much more, since the last report. Today’s look will be comprehensive, because I’m writing a feature article for Firearm News. This will be the material gathered from that testing.

Go back and read Part 1 to learn more about the Air Bolt. It’s an air bow system that you can own without buying a separate arrow launcher. If you already own certain .50 caliber big bores like the Sam Yang Dragon Claw 500cc rifle and the Wing Shot air shotgun, all you need are the arrows, or bolts as they are properly called. Instead of spending $900, you spend $120 for 6 bolts and you’re in business. And that’s not all!


The Air Bolt is powerful! Where a Benjamin Pioneer air bow launches a 375-grain arrow at up to 450 f.p.s., the Air Bolt pushes a 430-grain bolt at 500 f.p.s. Not that you need that much power, because the Pioneer is already much more powerful than any crossbow commonly available. The best crossbows are topping out at around 425 f.p.s. with lighter bolts, so either of these air bows trump them right now. But the Air Bolt is fastest and is even more powerful than the Pioneer, which means flatter shooting over longer distance.

I’m not going to just quote numbers from a website. I have actual data to show. First, let’s look at the weight of the bolt with a standard target tip.

Air Venturi Air Bolt scale target tip
An Air Bolt with a target tip weighs 429.9 grains. That’s pretty close to 430!


But wait, say the archers. These are target tips that aren’t meant for game. Won’t a hunting broadhead add a lot more weight to the bolt?

Actually, no. I bought 4 broadheads to test on the bolts and they weigh 100 grains, nominally. They have mechanical blades that are pointed forward and open as the arrow penetrates the target. That allows them to partially fit in the muzzle of the rifle. They cut a swath 1.5 inches wide as they penetrate, creating huge blood loss. Best of all, they weigh just a couple grains more than the target points.

Air Venturi Air Bolt scale broadhead
An Air Bolt with a broadhead weighs just 3 grains more than a target tip!

I bought Matthews Grim Reaper broadheads, and a pack of 4 was just $30. These are vicious tips that fly with their blades folded forward and open like switchblades when they contact the target. They cut in 3 directions with razor-sharp blades that you had best respect when loading! Remember — the Air Bolt is loaded from the muzzle! I will discuss loading the broadheads later.

Air Venturi Air Bolt broadhead
These broadhead points have 3 razor-sharp blades pointed forward that fold out and back when the arrow penetrates a target. They cut a swath 1.5 inches wide for maximum blood loss.

broadhead open
Ouch! Three razor-sharp blades deploy as the broadhead penetrates the target.


Let’s get serious. You know how much the arrows weigh, now let’s look at velocity when fired on high power, which is the Dragon Claw bolt pulled all the way back. This first string is fired with all target tips, from a fill to 3000 psi.

Shot…………………………..Velocity (f.p.s.)

I stopped after the seventh shot — not because the velocity was too low but because I wanted to test other things. However, in the field I would limit my shots to 5 per fill, just to be safe. This is still a big bore air rifle and even though it does get a lot of shots per fill there is no reason top abuse that. It affects accuracy, as I will now show.

I refilled the rifle to shoot again and noted that 7 shots had dropped the reservoir pressure from 3,000 psi to about 2,300 psi. That is a rough estimate because the day was so bright that reading the gauge was difficult.


I shot at 35 yards using the red dot sight that is sighted-in. I sighted-in at 25 yards, so I know the arrow will drop about 6 inches in the additional 10 yards. It becomes a simple task to aim over the desired point of impact. Let me show you.

Air Venturi Air Bolt shot 1
First shot from 35 yards using the top of the dartboard (at the number 20) as the aim point.

As you see, the first shot hit close to the center of the target. But what is just as important is where shot number 2 hits. Let’s see.

Air Venturi Air Bolt shot 2
Shot number 2 from 35 yards using the same aim point landed less than an inch from shot one. read more