500 Foot Pounds?
I’m not talking about my Texan matter of fact I love it like it is. But using the 405 Grain Pellets hasn’t given me the 500 FPDS as advertised. The 146 and the 166 grain Loads shoot above specs. Over 1000 FPS to 1050 FPS. I use the 457 405 grain pellets from Hunters supply, they shoot good and hit hard but no 500FPDS , far from it. OK guys tell me the secret!! LOL 😉
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Hey shaggy, thanks for sharing your results. I dont own or have used or even touched a Texsn first hand. I must say that it is a very interesting and a very popular game changer to airgunning. If nothing else at all, it certainly is a great marketing stratergy , bringing them instant brand name recognition and generating much publicity.
I must admit that the more I have been determined to not get caught in the hype, my curiosity continues to grow. I am catching myself at times with a case of that “P” -(ower) Envy! I suppose I can always use my big water bomb sling shot to wield multi ounce lead balls or something and prolly could get similiar Ft-lbs (man ya should see that thing launch eggs or even better yet golf balls!) And while the slingshot is a very unique and silent unassuming weapon , it just doesnt have the convience accuracy and cool factor as an Airforce Texan! (Damn,, why must I always write too much stuff and get to the point!!!! )
Anyways , I wonder if you or many of the other users are having less than the full-on performance fully capable of the platform by the use of simple mass produced fodder and factory stock tunings? Seems much of the performance with compressed air propelled bullets comes from the fine attention to details? Especially a critical attentiveness to maintaining an ultra fine tolerance of the projectile to the bore diameter? Just enough to seal the air and sufficiently stabilze the bullet rotation but as little as possible to minimize the drag from friction…. I noticed you mentioned the fact that your ammo is quality stuff made from pure materials. Does the manufacturer give an indication of the hardness? Seems that softer pure lead or near pure lead alloys are found to be best up to a certain point. If I was going to ever go bigbore, I would without any doubt slug the barrel with my fave bullet design and measure the bore and lands of my barrel from the impression of the slugged bullet with a micrometer. Then I would double check the diameter of those bullets and would have some sort of custom sizer made to size the ammo to my bore. I also would have my barrel lapped and the lead in tapered to the general best style of bullet I would plan on using.
You stated that at minimal powerwheel setting your gun wont even push the big 405 gr fully through the barrel? That gives me the indication that your ammo is dragging down in the barrel and likely is too large and/or too hard for your bore. I bet with attention to the ammo and some fine tuning, you may get those numbers…
Certainly attractive to have an elephant air gun and AIRFORCE has now delivered it in a consumer attainable production platform. I just wonder if it is really for everyone. I am on the fence about this one,,, mainly the price! On one hand look what you get ….. An elephant gun of an air rifle! On the otherhand Dennis Quackenbush is still producing Fine Quality custom bigbores for under $700 ( that is if you are lucky enough to win a revered spot to stand in line to purchase one. Otherwise you can buy one for the inflated street price that most people who invest in the purchase flip for profit….. $1000 same as the production gun. Daqs, Extreme hunters and various Fine custom guns are within simliar reach if ya take time to look for them! But Airforce is convienent!
final test today and the end of test as done by me 😉
highest reading on the 405 grain pellets from hunters supply by scale, is as follows the highest we can get,,
567.1 feet per second, makes 289 fpds
310 grain air gun pellets from Hunters supply is,,
652 fps making 293 fpds
143 round balls from Hunter supply,,
1003 feet per second on 3000psi, 1027 feet persecond on 2800 psi Making 334 foot pounds..
166 grain airgun Pellets from Hunters supply, is as follows,
3000 fill shot #1=682.8 fps,, shot number 2 990.6 fps,,, making 361 pds of energy, shot #3 tank pressure is 2800 psi, making 975.8 feet per second,,, 350 foot pounds of energy as stated befor.
I declare this the best mine will do lol.;) Love my Texan cause it still has more Foot pounds than the others I own as of to date. Facts measured on a chrono a scale and 3 airpressure gages 😉
All way out wont even shoot a 405 grain out of my barrel. All way in I get about 560 FPS on the chrono. Bullet came from Hunters supply 405grains weighted on my Digital meter and confirmed on my laymans digital. Air pressur is from 2900 to 3000 which shouldn’t make that kind of difference. second shot was the 560 FPS at around 2700 pounds of air pressure. Still the round balls get at high on the wheel same as it always has. the 405’s isn’t going to work on my Texan so I recon i’ll just use the 143 round balls or the 166 wad cutters. that’s what My Texan Likes. I can get 350 foot pounds on the round balls or the 166grain wad cutters, the 310 grains isn’t doing good either as far as fpds, Maybe the pellets are too hard ,, don’t know yet, have some more experminting to do.. But one thing for sure all way out wont even push a pellet out of my barrel lolol.;)
These are all air gun pellets. No wheel weights or junk shop production. I have 10 air force rifles and all of them does specks. The Texan does specks with the round balls and the 166 wad cutters , . Best I can do lolol
For lighter slugs and roundball you need the power wheel tightened, closer to the tank. For bigger bullets you need it backed all the way out towards the barrel.
Are you sure your air pressure is accurate? I fill using my gauge on my scba tank. If I was to fill to 3000 on my texan gauge then I would only be at 2800psi. That may be enough to keep you from getting your numbers.
I don’t have a crony ticket, but I know mine came out slightly over 500 fps using 360 grain slugs, for the first shot or 2. I haven’t cronyed my new 255 grain hollow points yet.
Thanks Voltar that is my next chrono test,, I was trying to do specks,, but the all way in mabe save me a lot of time lol,,
It is merely a power wheel like on any Condor. Crank it in to the max and see what you get.
I tested my Texan with 405 grain pellets bought from Hunters supply 457.
Once again I’m not complaining about it, just posting facts for I love my Texan.
No where on the wheel that I can go gives me 500 FPD’s conographed so far the most I can get is about 280 FPD’s of energy from it.
I haven’t ran it all way in cause I really aint comfortable doing that, the 143 grain gives more then the 405 grain, being the 143 and 166 grains goes over 1000 fps. The 143 goes to 1050 fps. So the gun is doing specks as far as the lighter pellets go. Me being not a real super smart airgunner, can someone post a conograph reading of the 405 so far I only see numbers on the web from real credible people but none of them are using 405,, most use the wad cutters drilled out to make hollopoints ect. I’ve seen conographed lower weight pellets but no 405’s only readings wrote down on the paper charts, and that is done with the test guns. Can anyone else get the 405 pellets to mke the 500 FPD’s or anything close? Thanks a bunch,,Till then I’ll shoot the 143 and 166 wadcutters 😉
Thanks for the help. I was going in for the tight pressure. Looks like I need to take tension off of the spring. I’ll do that when it quits raining and see what happens, Appreciate the help..
Even as it is it will definatly kill anything around here with ease. This thing is a beast. I’d buy it agin matter of fct, I might get me another just to keep me happy lol I mean heck we all need one to use and one to sleep with LOLOL.
Try the little adjuster wheel on the left side of the frame. It is for tuning the powerplant for various bullet weights. It’s not precise. AirForce left off the numbers because they don’t want people to obsess over certain settings. The marks are just for general reference. After that, go to PyramidAir.com and do a search for TEXAN and read Parts 1, 2 and 3 and see if that gives you any better insight. It’s the most bad-ass rifle I’ve ever shot and says a lot about Airforce’s engineering prowess!!! :4: What I do know for sure is that it does penetrate a cinder block. I’d like to see a CO2 or multi-pump do that :7: :8: :4: :4:
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Shaggy, are you sure they are sized right? I had some slugs I made before I got my sizer that were too big. They lodge in the barrel most of the time. After I sized to 457 they don’t lodge anymore. I got a custom sizing die and now size them to 456 and my groups tightened up. Its not meant to fill the rifling grooves.
Hardness may also be an issue. Im not sure if those are pure lead or not, but I know I had accuracy issues and lodging issues will harder lead. I eventually scrapped everything in the pot and ordered in pure lead to start over.
Third issue. If you had a slug lodge then you need to check the o-ring on the top hat. Mine has blown out/off multiple times after I had slugs lodge. If that oring is gone then you will always be losing power as you shoot. 1x14mm orings on amazon, super cheap.
I also see your first shot at 3000 psi is super low compared to your next shot. It looks like 3000psi is valve locking on you and it doesn’t open up all the way until the second and third shot. 3000PSI might be too high for your elevation?