Author Topic: 12FPE Pistol Build (Read 5434 times))

sixshootertexan · « **on:** February 08, 2014, 07:08:52 PM »

Building a 12 FPE to try out Pistol Field Target. It's nothing outrageous. Custom air tube with Disco internals, Mrod Trigger, and a custom breech with shroud. Have the tube made now need to start breech.

sixshootertexan · « **Reply #1 on:** February 14, 2014, 09:53:56 PM »

Got the lathe work done on the breech.

sixshootertexan · « **Reply #2 on:** February 15, 2014, 06:47:43 PM »

Got a little of the mill work done on the breech. Cut barrel to length and recrowned it.

PetefromTn · « **Reply #3 on:** February 15, 2014, 08:30:11 PM »

Looking good man is that nozzle for a shroud? I have a pistol I made awhile back completely from scratch that Is .22 and I have been considering making it a .177 and using it for PFT. Peace

Pete

sixshootertexan · « **Reply #4 on:** February 16, 2014, 05:34:57 PM »

Thanks Pete. Yes it will have a shroud on it.

sixshootertexan · « **Reply #5 on:** February 18, 2014, 09:20:44 PM »

Some more mill work done on the breech today. Rail milled, barrel set screw hole drilled and tapped and shroud retention screw hole drilled and tapped.

sixshootertexan · « **Reply #6 on:** February 19, 2014, 08:59:45 PM »

Got the mounting holes and bottom contoured to air tube. I sawed a piece of tubing for the shroud need to machine it yet, just put it on to see how it looks.

sixshootertexan · « **Reply #7 on:** February 20, 2014, 09:48:52 PM »

Breech is finished and I made the front cap for the shroud.

PetefromTn · « **Reply #8 on:** February 20, 2014, 10:06:35 PM »

Lookin' good six... Keep up the good work and progress reports man. Peace

Pete

Chako · « **Reply #9 on:** February 20, 2014, 11:22:51 PM »

Nice, whats the basic specs?
how much $ are you in, and what is the total going to be?

sixshootertexan · « **Reply #10 on:** February 22, 2014, 04:56:13 PM »

Got the last couple pieces that I needed done. Tport, hammer cocking pin, and made a 3/16" plate with drilled and tapped holes so I could cut the Holo-Krome low profile cap screws down to 3/16" since they only come in 1/4". Oh I forgot the barrel support for the muzzle end of the barrel. Now I need to assemble and start test filling it. I have the stock 22XX tport and hammer pin next the the custom ones I made. They are longer because of the custom breech/shroud.

sixshootertexan · « **Reply #11 on:** February 22, 2014, 04:58:50 PM »

Quote from: Chakolicous on February 20, 2014, 11:22:51 PM

Nice, whats the basic specs?
how much $ are you in, and what is the total going to be?

I'll have to total up the cost when I'm done. Wood for the stock is probably gonna double my cost.

sixshootertexan · « **Reply #12 on:** February 22, 2014, 11:26:30 PM »

ready to fill and test

sixshootertexan · « **Reply #13 on:** February 23, 2014, 01:33:52 PM »

Filled it this morning to 2000 psi and let it set about 15 minutes and it had leaked down to about 1700 psi. Going to have to look for a leak. Refilled it and first shot across chrony was a little over 12 FPE. It was 20. Crosman 14.3 @ 799 fps. Guess I'll have to detune it a bit. I'll try a lighter hammer spring first.

10 shot string
799
790
774
764
752
740
720
708
681
665

MultimediaMan · « **Reply #14 on:** February 23, 2014, 03:17:48 PM »

Really Nice!

PetefromTn · « **Reply #15 on:** February 24, 2014, 10:24:13 AM »

Nice man... A little tuning and you will probably have a sweet shooter there... Peace

Pete

Monkeydad1969 · « **Reply #16 on:** February 24, 2014, 11:25:22 AM »

That is nice. I can't wait to see it once you finish.

Joe

sixshootertexan · « **Reply #17 on:** February 24, 2014, 08:49:19 PM »

Thank y'all. I made a new tport. The first one had a .136" hole which is the same as a stock disco tport. New one has a .089" hole. I also borrowed a spring from my 2300 pistol to try. Now I have to wait until Saturday to test again.

sixshootertexan · « **Reply #18 on:** February 28, 2014, 08:55:58 PM »

New tport and spring got me down to 450fps @ 6.4fpe. Now I can open tport in small increments until I get the tune I want. Next test will be with a .096" tport.

Monkeydad1969 · « **Reply #19 on:** March 01, 2014, 02:47:30 AM »

Nice...can't wait to see your results.

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12FPE Pistol Build

Author Topic: 12FPE Pistol Build (Read 5434 times))