Air Forse Texan SS .357

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MP_usa said:
Hello guys
Can someone tell me what fps should I expect from Texan SS .357 with 125 grain slug? I can't find any speed related information on .357.
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@MP_usa You’re right. There isn’t much info that I have found with shot string data for the .357 Texan. Just a bunch of target photos. Here’s a thread where a post towards the end has handwritten chronograph data for the .357 Texan.

New to me Texan .357 at range

Well I bought a used Texan .357 from a AGN member then I put my Hiram 4-14x44 ffp scope on with BKL dovetail to picatinny adaptors I then bought some 127gr FP slugs and a Texan Short Shroud from Hunter Supply found a roll of camo tape in a box and put it all together to get this to do this at 60...
www.airgunnation.com www.airgunnation.com
 
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I just bought an SS and a Carbine.
My SS stock is anemic compared to the carbine.
I believe the SS I have has a weak spring.
But 130 grain stock I got 800 fps
The carbine gets 930 fps

Both of mine are most accurate with 150 plus grains.
Carbine with the donnyfl emperor V3 is a lil more quiet than the SS......but longer and more expensive.
 
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Bingo.. I am getting the same 830 fps.. You got both of them new? The second question - is there any difference between carbine and SS? I was under impression the only difference is the moderator which should not have anything to do with speed performance.. Thank you for your information - I will be calling Air Force tomorrow bace on your input
 
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MP_usa said:
Bingo.. I am getting the same 830 fps.. You got both of them new? The second question - is there any difference between carbine and SS? I was under impression the only difference is the moderator which should not have anything to do with speed performance.. Thank you for your information - I will be calling Air Force tomorrow bace on your input
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Same gun,barrel and internals just SS has the sound Loc system.
 
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MP_usa said:
Hello. I called Air Force today. They said that low 800 is correct fps - which is really low.. But how then your Carbine is doing good fps? Did you buy it new? Or may be it was power tuned by someone?
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I called today as well for a few reasons.
They claim the SS and carbine pushed a 170 grain at 790 fps
I believe that to be true if 150 grains are in the mid to upper 800's

I also believe that my SS barrel requires .358 or .359 to attain higher fps.
In the Carbine the .357 fit tight and I can barely push in a lil more than half of the slug

Same slug on the SS i can push it all the way in.

A tighter slug will build more pressure to keep the valve open longer just as a heavier slug will do the same

Once I get replacement parts in ill experiment.

Right now both my .357 which are brand new cracked the valve poppet in half and leak.

Causes are
To loose or lite of a slug.
Lite slug allows the valve to close faster slamming the poppet closed.
 
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Ok.. Did they tell you about the bullet size for the SS or you guessing? Yes - I sought its weird - but my bullet is getting completely in - so I can barely feel it with my finger.. And its not small bullet.. I have American Arms (Slayer ) - it loves these bullets! But - bottom line - you are sure that your carbine is doing over 930 fps with 130 grain slug -and that gun has no modifications to it? (because they said - you must be mistaking). I told them about you - when you called they must knew.. Did you talk to Max?
 
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MP_usa said:
Ok.. Did they tell you about the bullet size for the SS or you guessing? Yes - I sought its weird - but my bullet is getting completely in - so I can barely feel it with my finger.. And its not small bullet.. I have American Arms (Slayer ) - it loves these bullets! But - bottom line - you are sure that your carbine is doing over 930 fps with 130 grain slug -and that gun has no modifications to it? (because they said - you must be mistaking). I told them about you - when you called they must knew.. Did you talk to Max?
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Did not talk to max

They told me the Texan .357 actually needs .358
Then why isn't it a ".358"?
Told them no barrel manufacturer can mass produce every barrel identical.
I have two guns,same manufacturer......one fits .357 perfect the other fits it loose.

Note:
No two chronograph are the same.
My 850 fps may be a diffrent chronograph 820 fps

Humidity,altitude,lead hardness, temperature all play a part and vary results.
Yesterday I shot the 130 gr in my weaker texan at 880 fps.
Didn't try the stronger carbine cause the valve blew apart.
 
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MP_usa said:
Please keep me posted with your research on this topic
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No more research.
New valves on the way.
Made my own poppet last night and its working.

Airforce says this is the first they ever heard of this happening.

IMG_20241223_25511.jpg
 
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