does anybody know what all has to be changed to use CF bottle with texan 257 and what increased shot count to expect
Airforce texan 257
- Thread starter heavyw8
- Start date
I bought a AirForce TexanLSS 257 at the first of the year and performed what you are describing.
I purchased two cf bottles, I worried that the one I bought off ebay might not arrive, so I bought another one from Tony at Talontunes. Then I got a 25 lb hammer spring from Doug Noble. Doug informed me that to fill over 3800 risked breaking the valve stem.
i received both tanks, choose the Talontuhes 3600 psi tank as it was a few ounces lighter than the ebay 4500 psi tank, that and I dud not need 4500 psi. I removed the valve stem and valve return spring, reassembled the valve without the valve return spring and screwed the valve into the CF tank and filled to 3650 psi.
Then I decided to replace the hammer spring and ran into trouble. I had watched the African video and the Mr Hollowpointmolds video instructing how to replace that spring.
Both video’s warned about tipping the Texan, which was upside down with the trigger plate off, as it would cause parts of the trigger assembly to come out of alignment. Well I tipped it over and my wife and I worked for three days trying to get it assembled to no avail. I called AF and they would ONLY assist if I sent the rifle to them, they would not instruct me on the reassembly.
I put two help threads out on GTA and AGN, but only got one reply in the form of a picture.
Doug Noble, the god of all custom AF Rifles, read my thread and called me, chastused mr for not calling him as he is a old friend, or would that be a friend of a old guy? Anyway in 15 minutes with Doug on the phone, the wife and I got I it back together. I also converted it to a manual safety rather than the auto safety.
I also used the .25 inch Crayton bulbs to open the barrel lead to a tight “cork in the wine bottle fit” that I usually do with this sort of rifle to fully seat the bullet in the lead.
This next part will not help you much. I never shot the rifle prior to converting it. I get 1100 FPS with the PW maxed out and my cast 75 grain 257420’s. I only shoot three shots, they are very accurate and then I refill, I can get 2 or 3 more shots but I have not chronograph them.
Hope this helps,
Roachcreek
i
I purchased two cf bottles, I worried that the one I bought off ebay might not arrive, so I bought another one from Tony at Talontunes. Then I got a 25 lb hammer spring from Doug Noble. Doug informed me that to fill over 3800 risked breaking the valve stem.
i received both tanks, choose the Talontuhes 3600 psi tank as it was a few ounces lighter than the ebay 4500 psi tank, that and I dud not need 4500 psi. I removed the valve stem and valve return spring, reassembled the valve without the valve return spring and screwed the valve into the CF tank and filled to 3650 psi.
Then I decided to replace the hammer spring and ran into trouble. I had watched the African video and the Mr Hollowpointmolds video instructing how to replace that spring.
Both video’s warned about tipping the Texan, which was upside down with the trigger plate off, as it would cause parts of the trigger assembly to come out of alignment. Well I tipped it over and my wife and I worked for three days trying to get it assembled to no avail. I called AF and they would ONLY assist if I sent the rifle to them, they would not instruct me on the reassembly.
I put two help threads out on GTA and AGN, but only got one reply in the form of a picture.
Doug Noble, the god of all custom AF Rifles, read my thread and called me, chastused mr for not calling him as he is a old friend, or would that be a friend of a old guy? Anyway in 15 minutes with Doug on the phone, the wife and I got I it back together. I also converted it to a manual safety rather than the auto safety.
I also used the .25 inch Crayton bulbs to open the barrel lead to a tight “cork in the wine bottle fit” that I usually do with this sort of rifle to fully seat the bullet in the lead.
This next part will not help you much. I never shot the rifle prior to converting it. I get 1100 FPS with the PW maxed out and my cast 75 grain 257420’s. I only shoot three shots, they are very accurate and then I refill, I can get 2 or 3 more shots but I have not chronograph them.
Hope this helps,
Roachcreek
i
Upvote 0
The 257 texan is already using a 308 valve and steam for the usual 85g to 100g you only need a Doug heavy spring..as for my texan bottle I purchased Ebay 1.1 liter carbon bottle,the shoulder rest from pcp tunes work with the Ebay bottle..that setup will give you like 20 good shoots..I would no bother to use the 580cc tt bottle unless you want to use a maddog stock..then that's the one you want ..and used tethered for plinking..I use the light bullets in my condor .257 -- 65g to 75g ...85g n up in the texan..my condor valve push the 257-420 at 1,050 at power #2 of 10 with a 28 "1/2 barrel ....I think I managed to download a pic
finally Upvote 0
I think I remember something about your wife having to actually reassemble the rifle there RC. lol Ya blind old man. j/k
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I plead guilty.
She has become a pretty good hand at assembling airguns.
I won the marriage lottery when I shagged her.
years ago we were driving back from doing that 615 yard video, it was endless desert, no cars,no houses just rocks and sage brush.
I was explaining to her the differences in the two prominent gas systems used by for the AR 15. I looked at her and said, ”you really don’t understand what I am talking about”, she She smiled and replied, “oh yes I do, I know how to disassemble the Armalite”, as they call it in the Philippines, “how to crawl with it, how to eat with it.”
I was shocked and asked her where she learned that and that was when I learned she was in the Philippine ROTC.
She never ceases to amaze me, and yes she did indeed assemble that Texan trigger for her’ Blind ole man.’
Regards,
Roachcreek
She has become a pretty good hand at assembling airguns.
I won the marriage lottery when I shagged her.
years ago we were driving back from doing that 615 yard video, it was endless desert, no cars,no houses just rocks and sage brush.
I was explaining to her the differences in the two prominent gas systems used by for the AR 15. I looked at her and said, ”you really don’t understand what I am talking about”, she She smiled and replied, “oh yes I do, I know how to disassemble the Armalite”, as they call it in the Philippines, “how to crawl with it, how to eat with it.”
I was shocked and asked her where she learned that and that was when I learned she was in the Philippine ROTC.
She never ceases to amaze me, and yes she did indeed assemble that Texan trigger for her’ Blind ole man.’
Regards,
Roachcreek
Upvote 0