Walther Terrus air rifle: Part 2

by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 3
Part 4

Walther Terrus
Walther’s Terrus rifle with synthetic stock.

This report covers:

  • First up — JSB Exact RS pellets
  • RWS Hobby pellets
  • RWS Superdome pellets
  • Vibration
  • Cocking effort
  • Trigger-pull
  • Chronograph problem solved?
  • What’s inside?
  • Evaluation so far

Today, we’ll see how fast the .22-caliber Walther Terrus breakbarrel air rifle shoots. We’ll also learn some other things about the state of this Terrus’ tune as it comes from the box. There’s a lot of interest in the Terrus, both because of the price and also because it comes from Walther.

First up — JSB Exact RS pellets

The first pellets I tested were the 13.43-grain JSB Exact RS domed pellets. They fit the bore loosely and averaged 649 f.p.s. for 10 shots, with a range from 646 to 658. The spread was 12 f.p.s. At the average velocity, it generates 12.55 foot-pounds of energy at the muzzle.

RWS Hobby pellets

The next pellet I tested was the RWS Hobby, which weighs 11.9 grains in .22 caliber. They fit the breech very tight and averaged 722 f.p.s., with a range from 710 to 729 f.p.s. That’s a 19 foot-per-second spread. At the average speed, Hobbys produced 13.78 foot-pounds of energy at the muzzle.

RWS Superdome pellets

The last pellet I tested was the RWS Superdome, which weighs 14.5 grains. They weren’t as tight as Hobbys, but they did fit tight. Superdomes averaged 654 f.p.s. The range went from a low of 638 f.p.s. to a high of 660 f.p.s. So, the spread is 22 f.p.s. At the average velocity, Superdomes produce 13.77 foot-pounds.

Before we move on, let’s consider this for a moment. The heaviest pellet produces almost the greatest amount of muzzle energy. That’s backwards for a spring-piston gun. Usually the lightest pellets produce the greatest energy. This suggests that perhaps the Superdomes might be a good pellet for this rifle, if they’re accurate.

We now know the test Terrus is a 14 foot-pound rifle. Knowing that, we can estimate that a .177 Terrus will produce around 12 foot-pounds — give or take. Individual rifles should be close to these numbers.

Vibration

I mentioned in part 1 that the Terrus I’m testing buzzes a little when it fires. I also mentioned that the buzz seemed to be calming down, the more I shot the gun. Well, today I fired the rifle many times and by the end, the buzz was noticeably reduced. This may be something that goes away as the rifle breaks in. I’ve seen older Gamos and Webleys that did the same thing; and by 3,000 shots, they were shooting very smooth.

Cocking effort

The Terrus has an easy cocking effort up to the final few inches of the stroke. That’s when the mainspring stacks (increases in effort noticeably), and the cocking effort jumps from 20 lbs. to 30 lbs. Fortunately, the barrel is in the ideal position for maximum mechanical advantage when this happens.

Trigger-pull

The 2-stage trigger breaks around 3 lbs. It varies from 2 lbs., 9 oz. to 3 lbs., 4 oz. I sometimes feel just a hint of creep in the second stage, but usually not. Creep is when the trigger moves with a jerky motion. Like the powerplant buzzing, I think this trigger needs to break in before it’s at its best.

Chronograph problem solved?

I’m testing the Terrus with a Shooting Chrony Alpha Master chronograph. Pyramyd Air gave me this chronograph to replace the Alpha model I shot during a recent test. The Alpha Master’s control unit and display is a separate box that can be separated from the skyscreens by an 18-foot cable. That cable makes my work at the outdoor rifle range much easier and safer.

The first time I used the new chrony, I noticed some of the velocities were hundreds of feet too low. I thought that might have been due to the first skyscreen triggering too soon from the shockwave of the shot. The shockwave travels faster than the pellet and gets in front of it almost immediately. It’s a wave of compressed air that’s apparently visible to the skyscreen.

During this test, I fired one shot that was 200+ f.p.s. too slow. Seeing that, I backed up to make 2 feet of separation between the muzzle and skyscreen 1. The manual says you should allow 3 feet, but my office doesn’t have the room to permit that. After backing up, there were no more slow velocities. I said I would test for this when I reported on the chronograph, but I decided to do it today, since I think the problem has been solved. I still plan to report on the chronograph.

What’s inside?

I’ve had a lot of questions about how the Terrus is built. Does it have such-and-such a trigger? Is the powerplant made from such-and-such parts? Many people are hoping that the Terrus is the rifle that Walther decided to pour all their best parts into and charge much less for. I’m sorry to break your hearts, but it doesn’t work that way. This air rifle is being built with the slimmest of profit margins, and it cannot contain the same parts as the LGV and LGU families of rifles. The Terrus is not a “poor man’s LGV.” It stands apart as a stunning value that, if accurate, could set the airgunning world on its ear. It is what it is, and it’s not a cheaper version of anything.

As I mentioned in part 1, if I buy it, I do intend tearing into this one to see what’s inside — and also to see what can be done to it.

Evaluation so far

The Terrus is turning out the way I hoped it would. If it’s accurate, we’ll have a new best buy in a spring rifle.

I like the rifle for its light weight, easy cocking, nice trigger and general fit. How nice it will be if we find it’s also accurate?

61 thoughts on “Walther Terrus air rifle: Part 2

  1. BB,

    This air rifle seems to keep creeping up my short list more and more. I do not much care for those glowy thingy sights, but at least they are easily replaceable. I think I would also prefer the wood stock. No, it is not the LGV, but it shows that the Europeans are listening to what is going on over here and are starting to produce “entry level” air rifles in the price range to be competitive with Crosman, but still have the quality we “old pros” would expect from the Europeans.


    • RR
      I hope me getting the message to you about Lloyd wanting to talk to you was for a good purpose and went well for you as he had just finished some parts for my 2240s for me a couple weeks ago and asked me if I could get in touch with you since he knew we both posted on this blog.

      I hope it helped both you and him.

      BD






              • Reb
                I don’t have any liege lock guns to put on the market if that is what you are trying to say.

                But I will have two nice HPA 2240s that can be filled to 2200 psi without leaks or a banana shaped air cylinder that is impossible to attach to a straight barrel without causing it to leak as fast as you can fill it.

                Testing will commence in a week or so as i got other projects to complete first namely upgrading my B40 with TX in internals so it shoots at the fps it should without a worn out compression chamber in it.

                Then tune my 48 to not break Hawke scopes and shoot smoother than it is now and then it will be 2240 time .

                BD



                  • Reb
                    if you are talking about the B40 its not getting sleeved but rather I am putting a TX compression chamber , piston , guide rings and piston seal in the 40 to replace the worn out chamber that has .080′ out of roundness in it and will only shoot RWS superdomes at 810 fps and I am wanting it to shoot JSB 10.34s or CP 10.5 at 830 plus so it needs a round chamber in it and parts for the B40 are no longer available from BAM .

                    The only difference between a B40 chamber and the TX is the breech port in the chamber so I may have to do some mods to it if it does not line up properly with the 40s barrel but that is easily modified if necessary.

                    BD


                • While I gotcha on the line…I’d like to run an idea by you and see if you think he’ll listen? How about instead of rebuilding the pump Assyrian on my 3120 we sleeve it for co2/1100psi with a full nipple under where the forearm would be?
                  I’m gonna have to order a pump now anyways!



                    • Reb
                      Are you meaning sleeve the pump chamber so it can be filled with CO2 in bulk.

                      if you are meaning Lloyd doing that I doubt he will as I talked to him about producing a disco tube setup for 2240s to go along with his double kits and he just does not have time for another product line. It took me from the day after thanksgiving until one week ago to get my tubes completed and he had to make aluminum ends that fit in the 2240s tube because the hipac tube is only .025″ thick where the o ring sits and he broke the threaded end off one of the hipac ends when polishing the aluminum tubes so he made two much thicker aluminum end to fit in the guns tube and they have zero run out instead of the banana shaped hipac cylinders.

                      if you can come up with a sleeve that will fit inside the pump tube I may be able to make grooves to seal it with o rings but it will need to be at least .100″ thick to do so with. and then it would be easier to fit a fill fitting in the end rather than the side of the tube. Still a very involved project to say the least.

                      you would much cheaper to just build it back to stock and save for a cheap FDAR XC60C 165 buck PCP that uses 1500 psi to snoot with although I run mine at 2000 psi without any issues as of yet and I have had it well over a year.

                      BD


                    • Reb
                      Yea on the B40 it is a retrofit with TX parts as the b40s chamber is just to worn out to even attempt to put a sleeve in it and it would cost more than the TX parts I just got to retrofit so it will be a hybrid of B40/TX200 parts.

                      BD


  2. BB, you mention that the vibration during the shot is reducing as you test shoot the rifle. I was wondering about the apparent “anomaly” you found with the heaviest pellet giving the best energy (as opposed to the lightest, as expected for a spring piston). Is it possible that such “anomaly” is an effect of the breaking-in period of the rifle?


  3. BB

    Does the Terrus really come from Walter – even if it says Walter on it?

    Walther does not list the Terrus, LGV nor LGU among their products. Just check here:
    http://www.carl-walther.de (click on “AIR RIFLES”)

    I think the Terrus is just a branded “Walter” made by Umarex. Umarex has a lot of branded air rifles like Browning, Hämmerli and Ruger. I assume they all are made in China. Just check here:
    http://www.umarex.com/de/airguns/federdruck/gewehre.html

    If I want a high quality European air gun with top accuracy and a great trigger, I recommend Weihrauch, Diana or Air Arms.

    Eddie



      • Umarex *owns* Walther, so it is an Umarex as well as a “real” Walther…

        Technically, many police forces, militaries and even James Bond are shooting Umarex guns.

        I don’t see what all the Umarex hate is about anyway. Yes, they do have cheap stuff such as € 20,- Airsoft guns or bargain pellet guns that are probably not that great. But you get what you pay for…

        The CP88 was an instant classic when it was introduced. Does the fact that it was developed by Umarex make it a bad gun?


        • Stephan,

          The “hate” as you put it, is because Umarex has used the names of prestigious brands of guns on inexpensive guns made in the Orient. For example, in the 1960s the name Haemmerli meant the finest Swiss-made firearms and airgun. But Umarex put the Haemmerli name on airguns made in China. And they put the Walther name on spring rifles made in China.

          This confuses people. When a company has spent a long time building a brand, and then suddenly uses that brand on things that are not made to the same standards, the buying public becomes wary. They wonder where the next switch or cheap gun with a good name is coming from.

          In the U.S. the name Beeman on an airgun used to mean that it was the best. But today when you use the Beeman name you have to explain which kind of Beeman you are talking about — a Chinese Beeman or a “real” Beeman.

          Can you imagine what people would say if German beer were suddenly brewed to American beer standards and given a German name? Beer drinkers would revolt — both in your country and over here!

          Brand names are the identities of the products they are found on. Just ask the folks at Coke what happened when they changed what was inside the can.

          I know it sounds like some readers are going overboard on this, but we have a saying. “Fool me once; shame on you. Fool me twice; shame on me.” It’s a way of saying trust has been lost.

          B.B.


          • Yeah, you’re right about putting prestigious brand names on cheap stuff. I wasn’t aware this was done with Walther.

            My Hämmerli S26 is fairly nice though. It’s like a SIG Sauer P226 on the outside and probably much like a CP88 on the inside. I suppose calling the result a “Hämmerli” is still weird 🙂


            • Stephan,

              It’s weird to a guy who grew up with his eye on a Haemmerli free pistol.

              And the rifles were called the Walther Talon Magnum and the Walther Falcon Hunter. Here is a report:

              /blog/2008/11/walther-talon-magnum-part-3/

              B.B.




                  • I do hunt with it when I can. My best friend Konrad, he’s a beagle, we like to go out and get a couple of rabbits for lunch when time allows.
                    I also enjoy plinking with it and even some target shooting.
                    I run a Nikon 2-7 BDC Slug scope on it and it’s a heck of an accurate thing.
                    I was just shooting some H&N lead free pellets…field target greens(?)…9 and a half grains and each one did its little tiny sonic boom, or more like sonic snap.
                    I was really into firearms and considered airguns to be toys, but after starting to read your articles, which I enjoy very much, I ordered a rifle from Pyramyd, and got hooked.
                    Now this Walther for $230… I’m very interested in what you think of it. I have a Daisy Avanti that cost more than this Terrus and the justification for that purchase was the Walther Lothar barrel!

                    I appreciate your welcome very much and I will continue to seek out your opinions.
                    Thanks very much again!

                    -A


                    • Akell,

                      I never said the Terrus has a Lothar Walther barrel, and I’m not sure that it does.

                      Walther is an entirely different company that Lothar Walther. They are related from some distant time, but they are not the same today. And a Lothar Walther barrel does add a lot of cost to anything it’s on.

                      B.B.


          • Hammerli still make air rifles, at their original factory, see the AR20….
            Beeman is a bit of a poor example of a good manufacturer’s name being sullied by far eastern product
            Beeman distributed quality European rifles, occasionally restocked or modified to spec but nonetheless not Beeman, however that fed a quality item to the US public and built a reputation…..now entirely lost…..
            BSA and Webley are currently clinging by their nails to their reputations with application of stringent QC….and in the case of BSA…barrels..at the foreign manufacturers
            But, at least they sold with stipulations.


            • Dom.

              Beeman is a poor example??? Beeman proves my point! A once-good name is now tarnished. No they never made anything, but their name was only given to the best airguns. Not no more.

              Webley is gone. Their guns are being made in Turkey — proving my point. BSA has turned over the production of their spring guns to Gamo — again proving my point.

              Stipulations are the joke of the airgun industry. We call it “weasel wording.” Finding new ways to obfuscate the truth.

              B.B.


              • Bob was a great marketeer, and the US airgun industry owes him a debt no doubt, but he isn’t Hammerli, Walther, Remington or Ruger for that matter, or any of the other reputable companies that have had their names tacked on the orients worst.
                In fact, I’m pretty certain Beeman’s oevre was also a smoke and mirrors trick…how many people thought they were buying home grown?.
                Webley, certainly, have staff at Hatsan…and the Webley product is improving (slowly) because of it…..they apologise profusely for the fact it’s taking them so long on Webley’s (very frank) website.
                The barrel and QC on the BSA lightning you recently tested was all Birmingham rather than Bilbao too…..those are stipulations of company sales that have relocated engineers…not weasel words.


                • Dom,

                  The BSA Lightning — and all modern BSA springers — are not made in England. I have an email from the director of BSA’s plant in Birmingham where he told that if I have questions about BSA springers, I’m to direct them to 2 gentlemen in Spain, where all BSA springers are made. The director could provide no answers for me because he didn’t handle those guns.

                  Edith


                  • The barrels for the lightning, supersport and the now defunct Meteor Mk7 are all made in Birmingham, as is overall design, the rifles are, however manufactured in Spain.,,,I am aware of this, and somewhat saddened by it.
                    BSA, unlike Webley have no full time staff at the foreign plant, they do have the stipulation however that PCP and barrel production on BSA branded products remains in the UK.
                    Webley are more interesting….did you know Norica nearly had the name…but wouldn’t accept UK technical staff or design…Hatsan were more amenable and could see the advantage.


  4. well if you don’t buy the gun and tear it apart, here are some links for the terrus and lgv models.
    http://www.umarex.de/en/airguns/walther-lg-series/walther-terrus.html
    http://www.co2air.de/wbb3/index.php?page=Thread&threadID=82386
    http://www.airrifle.co.za/threads/32246-Walther-LGV-trigger-job
    It seems that the trigger housing is like an airsoft mechbox (some kind of cast metal, aluminium? with steel inserts where necessary) and the internals made of pressed steel not machined. I think that this kind of construction is more appropriate for lower stress co2 airguns than the heavier spring piston airguns.


  5. B B maybe you might remember I had the same issues with my chrony, same model.
    I showed my friend the powder burns from 303 rifle load tests and asked if he had problems too. He said back up 15 ft at least. So thinking about it I put it midrange in basement for air rifles. Walla it’s now consistent with 50 fps slower or so with wadcutters.

    Also I got brave and tuned my RWS 45. I used a good deal of tar and soldered a copper sheet to spring guide to nail it on. Glued JM buttons and it is vibe free. It does 10 ft lbs now instead of 11-12 but is really pleasant to shoot. Also bent the barrel per previous posts and worked easily and perfect. Thanks for all the info and help!


    • Mister Rob,

      Is your 45 now free from Vibration? I have wondered if I should have used some tar in the rifle I tuned.

      And congrats on bending the barrel! Isn’t it nice to have a gun that shoots where it looks?

      B.B.


      • Yes it is free from vibration, I put more tar than I have done in the past. I think it took some velocity but well worth it. Barrel was bent to the right. I left it overnight in the jig. Came out straight as a string. Could not believe how easy and simple it was to do.


  6. My Terrus .22 twangs loud on the first shot, then it’s practically gone. Wait a few hours, it does the same thing. I have never had a springer do that before (I own 7, not counting gas pistons.) I don’t know enough about springers to know why it would do that. As far as it shooting heavier pellets best I would slightly disagree. It shoots medium weight pellets best. When I shot JSB 18.13s power fell 1/2 ft-lb. It likes 14.3-16 grain.



  7. I feel like a kid on Christmas Eve waiting for the rest of this blog B.B. ! I have been debating myself for a year now over what to get for my next air rifle . We all want the Holy Grail of airguns and I have been “King Arthur” for a long time now . This might be the real deal powerful enough for small game in .22 quality built ( finish and not having to buy triggers and what not to make it usable) affordable,and hopefully accurate ! If this is the “Grail” I seek it will be ordered for my boys as well ! To many times a good thing disappears from the market for whatever reason the company changes it’s line . That’s why your “classic” blogs are so interesting for those of us who have missed out on great guns of the past . Just like your Bronco ! Not sure what a company is thinking sometimes it’s like “New Coke ” no one wanted “New” so classic was brought back then “New” became “Not “! I’ve seen people complain that a company isn’t updating it’s line ,well if it ain’t broke don’t fix it! Thanks


    • Jason,

      Funny you should say, “Just like your Bronco.” because that is exactly what came to my mind when I first shot the Terrus with a wood stock. I had a long talk with Justin Biddle, the marketing manager of Umarex USA, about some possible things they could do to make the rifle even more desirable.

      I don’t think it will go away. I think you will see even more of it. I just hope that it’s accurate!

      B.B.


    • Jason,

      Interesting comments which got me thinking about Weirauch. Lots of folks say they want them to come out with something new and not just a restock of the same old actions. They say that the existing lineup is tired.

      But I wonder which existing rifle folks would be willing to let HW drop to make room for a new model? Sure it would be nice if they a had all the old stuff and some new stuff but they realities of business would probably mean that something old would have to go to make room for something new.

      So I guess your comments just make me wonder if folks would really want to make such a trade.

      Mark N


      • I hear the same thing . I don’t understand why some people would rather have a “plastic ” gun from these companies that make fine wood and steel rifles. Synthetic stocks are one thing but plastic barrel shrouds and plastic triggers isn’t making a gun better . I’ll take the” old” gun that hits the target where you aim over new plastic fantastic any day. My only complaint is these accurate guns usually don’t come in .22 only .177 and that has had me waiting for the right gun to show itself .


  8. Speaking of Umarex and JB, They are hosting the first ever Airgun-Steels and 3-Gun Match at Chaffee Crossing in Fort Smith, Arkansas this Saturday, May 9th, starting at 5:30pm (shooting at 6:00pm). It’s free to attend and cost $5 to shoot. They will be shooting soft air and airguns. Umarex will have guns available to shoot if you need them.
    http://www.umarexusa.com/airmatch


  9. Ulrich Eichstädt
    Can you tell me why Walther chose to make high power spring rifles in .177 instead of.22. I have read several guesses from bloggers but I would like to hear it from inside Walther. I own a Walther CO2 CP88 that don’t pierce the cartridges properly, which is a pity because it is such a beautiful pistol and fits me perfectly. I am presently trying a remedial technique that BB mentioned. I also have an old LGR on the way. I would like a high power LGV springer but not in .177!
    Regards


  10. Really interesting review so far…

    How does the trigger compare to the Rekord and the T06?

    At 7.5 joules, the 1980 HW35 I shoot is a little smoother than my 2014 Diana 31 (=34P). I wonder how the Terrus would compare…

    The Terrus sounds like a really nice rifle. It does seem to have a plastic front sight with fiberoptics though. I’d prefer the sights on an HW35 or a Diana 34 Classic (the other 34s have the plastic stuff as well).

    The Terrus, the 34 and the HW35 are in the the same price range around here, btw (€ 250). So it will be interesting to see how accurate the Terrus and the HW35 are when BB reviews them…


    • Stephan,

      If the Terrus is priced the same as the Diana 31 and the HW35 it better be accurate. Both those rifles have old-world craftsmanship on their side, so the Terrus has no room to maneuver. It better be accurate.

      B.B.


      • I can’t comment on how well the Terrus is made. What I’ve read so far sounds fairly high-quality.

        The 31/34 does come from a long lineage of similar guns of course…

        As for the HW35, how cool is it that a design this old still works so well? I guess it would be hard to make a new gun design with the same details for a similar price. The barrel lock alone is fairly complex and so are the cocking mechanism and the front sight.
        Maybe Weihrauch can do it because they have been producing it for over half a century. I wonder if they ever had to replace the machines due to wear…


  11. Perhaps I’m not familiar enough with the LGV family, but I’m supposing that they represent high value. If so, one would think that a best value would be exactly a poor man’s LGV. If not, then the Terrus must have great quality with low price using completely different parts. Is that the case? That sounds like it would be a more expensive proposition than the poor man’s version.

    Does the weapon used by the Starship troopers have a name? In the novel version of Star Wars that I read, it is just called a “big rifle.” But I agree that there is a great likeness. You can hardly get a more tactical look than Star Wars.

    Mike, I forgot to say that I thought the only thing you were missing in the UP was a long distance range because I picture the area as heavily forested, but it sounds like you may have that too. Remember Larry Vickers’ goal for tactical rifles, 2.5 MOA with 10 shots. That is the limit of combat accuracy according to him beyond which nothing else is really relevant. That’s what I’ll be looking for.

    Matt61



    • Matt,

      Read what B.B. said again, “The Terrus is not a “poor man’s LGV.” It stands apart as a stunning value that, if accurate, could set the airgunning world on its ear. It is what it is, and it’s not a cheaper version of anything.”

      So the Terrus is its own gun and if it can shoot a lot of people ate going to want one including me. I preordered a wood stock .22 cal yesterday. They are backordered with a due date now of 5/29 so B.B. will most likely finish reporting on his before mine even ships.

      David


    • The range is working on a 250 yard bay. They will need to build a berm to make it work. Right now, there is an old gravel pit where you can get 300 yds no problem. I have used it a time or two. I shot my 25.06 Sako out there and found that it was -6 inches at 300 yds. That was with 100 gr. Nosler Partition bullets @ 3290 fps. That is my go to deer rifle. It shoots sub 1 inch 100 yards groups. But, I had to glass bed it and free float the barrel to get it that good. Out of the box it was a 2 inch gun.

      Mike


  12. I’ve got a .17 on order from Pyramyd. All the reviews so far (UK mostly) have been excellent. It’s back ordered now. This rifle fills a niche for me. I’ve got an HW30 and a couple of XS12 low powered — on the Magnum end an XS28 fill tune from Mike Melick and a BAM B-21. Thanks for the review so far, looking forward to accuracy testing.


    • Everett,

      You must have ordered a wood stock .177 cal cause Pyramyd shows the plastic .177 cal as in stock. I have an HW50S and Diana RWS 460 Magnum both in .177 cal if the .22 cal Terrus shoots as well as they do I’ll be happy.

      David


  13. I’ve read a report by someone on a tour that the LGV was made in an Umarex plant, not a Walther plant. Both in Germany. So I’d bet similarly with these.

    Not knocking it, but just saying that parent companies do a bit tom foolery with the brands under its umbrella.


    • John,

      I don’t even know if there’s a Walther plant. Is there? I can tell you for darn sure that there’s no Benjamin plant or Sheridan plant, yet those are the brands on the guns. The Crosman plant in NY puts all of them out.

      Likewise, when it comes to pellets. There are few makers of pellets. Each pellet maker does not have their own plant. Same with steel BBs. There are just a few places that make them, and then they’re branded according to who’s buying them.

      Edith


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