Airforce Texan .457 ss valve question

[badammo]

I picked up a Texan .457 ss in a pawn shop for $475. There was a rattle noise in the air tank and 0 psi. I removed the valve body and found the valve disc had come off of the valve stem. It appears to be pressed together. I pressed it back on and did a partial fill. It seems to be holding air.
Question is, is this a common problem?

 

[MAUMAU]

I have a AF Texan LSS CF in .457, but its new so I know little about the valve body.

I would call AirForce customer service and they will give you a definitive answer.

 

[RM.510bigbore]

Your valve is broken. If you shoot Tx2 valve too low on pressure it will break the valve. All you hear is the parts that fall in the tank. Common problem... Easy fix ..5 min....Call Airforce... One week they have you the parts......

 

[MAUMAU]

@RM.510bigbore -

As I want to avoid a broken valve, below what pressure will the valve be broken or compromised?

Also, I keep the tank fully charged at 3625 in case I need to dispatch something in the middle of the night.

If the tank is kept at 3625, will this eventually weaken or compromise the carbon fiber tank itself?

Thanking you in advance.

 

[RM.510bigbore]

If is perfectly fine to keep it at 3625 psi all the time. Mine is always at 3625 psi. Probably 5 shots on your 457 SS. Stick with light slugs in your SS..250grain and under. Much better results if your not tethering. Shoot 3 shots max refill. Consistently in velocity and groups. Here to help

 

[RM.510bigbore]

3625 psi for carbon fiber tank and 3000 psi for the aluminum tank version... So there is no confusion

 

[MAUMAU]

@RM.510bigbore -

Thank you for the information and it is much appreciated.

I talked with the owner of Nielsen Specialty Ammo and asked him what ammo he recommended for the LSS CF in .457. I told him it was for hunting feral pigs and armadillos and he recommended the 298 grain. I ended up ordering a few hundred 298 gr HP-BT Knurl Slugs and they are dead accurate and hit with authority. One shot to the neck and they are down. I also ordered a hundred 240 gr hollow points, but have yet to test them.

Here is a link to the 298 gr slugs I am using.

298 gr HP-BT-Knurl, 45 Cal​

Nielsen Specialty Ammo | 298 gr HP-BT-Knurl, 45 Cal

nielsenspecialtyammo.com

 

[RM.510bigbore]

In the description it says Texan SS . The SS has 24inch barrel. The LSS has the 34 inch barrel. Either way NSA slugs are some of the best...I hope you have a shooter friend...

 

[MAUMAU]

@RM.510bigbore -

I saw that as well, but Nielsen seemed to think the 298 gr would suit my purposes with the LSS CF. So far the 298's (with a rather massive hollow point) seem to knock them down immediately which is what I want. I am used to hunting dangerous game with centerfires, but with the limited shots available in a PCP, I want the first shot to eliminate or reduce having to deal with a wounded and potentially dangerous animal, especially in the dark. I do carry a 1911 in .45 as backup, but would rather do a clean kill with the PCP.

I will have to try the 240's as you suggested and see if they hit the same spot as the 298's. If not, the Thermal Scope allows you to program several different loads as well as moving it to different rifles without re-zeroing.

 

[MAUMAU]

I posted a short review of my new extended buttstock from Concealment Solutions.

Airforce - Upgrading the Buttstock on the AirForce Texan LSS CF

I purchased a AirForce Texan LSS CF in .457 a few months ago and have hunted with it quite a bit. During that time I took note of where AirForce cut corners and the Mickey Mouse buttstock on the rifle was one such item. As the Carbon Fiber bottle is shorter than the steel bottle, the shooting...

www.airgunnation.com

 

[DesertSilver]

He has the lss not the SS. The lss I believe is the standard length barrel just with a moderator.

In the description it says Texan SS . The SS has 24inch barrel. The LSS has the 34 inch barrel. Either way NSA slugs are some of the best...I hope you have a shooter friend...

 

[RM.510bigbore]

I just saw your setup. One thing thing I would highly recommend doing is getting Airforce dovetail to pictany adapter... There are more vibrations and double recoil that eats up mounting accessories... On my .510 no other adapter will work except the Airforce BKL.... Its hard on mounting accessories like a 458 win....

 

[MAUMAU]

@RM.510bigbore -

It may be hard to see in the picture, but there is a very stout BKL dovetail to picatinny adapter.

The thermal will only mount to a picatinny rail, not to the AF dovetail.

The rifle should have been manufactured with a picatinny rail from the beginning. This is just another example of AirForce cutting corners and a common complaint from buyers.

BKL 3/8" or 11mm Dovetail to Weaver Cantilever Adapter, 4" Long, Matte Black | Pyramyd AIR

We've got a great price on BKL 3/8" or 11mm Dovetail to Weaver Cantilever Adapter, 4" Long, Matte Black at Pyramyd AIR. Shop where the experts do!

www.pyramydair.com

 

[RM.510bigbore]

Cool BKL good. I tried all the cheap ones... No good... They would slide..My setup...been consistent..

 

[RM.510bigbore]

 

[RM.510bigbore]

One more thing..I wouldn't recommend shooting stock Texan forend in a Tripod like the BOG Deathgrip .....Been there done that...forend screw ripped out of aluminum frame.....thus the reason I made a stock... You did all your research... you should make less mistakes than me with my Texan friend.. good day

 

[MAUMAU]

@RM.510bigbore -

When I am out on the trails on my property, I carry my tripod in my left hand by one of the legs and have the rifle over my right shoulder. When I stop to scan an area, I just place the tripod down and a quick flip and the rifle is gently cradled in the tripod V. I then do a 360 scan like a submarine periscope.

Thank you for all of your much valued assistance! Best..................Rob

PS: Looks like you could hunt aliens with your amazing rig!