Help Breech froze-up
Bought a 30 cal. barrel and breech, and shot like 100 shots, now the breech froze up, what to do, can you take the barrel down some more to solve this, or what.
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We all have to learn the same way by trial and error, I’m not saying there aint no copy cats because there are alot of them, but they are all trying to achieve the same thing, someone with the special skills and passion like Doug has, are the elite group, who go above and beyond the normal. I wish I could afford a gun made from Doug, but being on SS, sucks so I am the one trying to cut corners and just to enjoy myself and the sport, I really like getting a new gun and playing around with it till it satisfies me, then I just play with it now and then cause I have others I need to shoot too. Well, have a good day Knife and Happy Veterans Day for all those who have laid there lives on the line.
Would be copy cats there MAW. LOL!!!
What’s an aso ran’s
Doug has truly studied his craft with these guns! Much more-so than some of the “Also-ran’s!) If Doug has found the cure, you can bet it “IS” the Cure! 😉
Knife
I took a cutting wheel and dremal, cut the disc down and made the groove wider, test tomorrow, seems ok but you never know, I shot it 8 times and all was good, in the bathroom, Happy Veterans day tomorrow, I don’t know about others, all I know is I like the last build I have 45 200fpe, I have a 357 kit too, I have not put it together yet, I really like the idea of not having to wait 6 months to a year for a new toy.
If he’s cutting corners on The machining…. Makes me wonder how safe his kits are.
Anyone else post about issues with his shit?
Oh Great, that sounds like exactly what is going on with mine Dyotat, something I cannot fix. There is nothing worse then a gun that doesn’t operate correctly. &^%$,&*()^%$#@%%^&*!!
IIRC the o-rings for the breech are BS11 That has a crosssection of 1.58mm. You could try a standard metric size that has 1,5mm cross section. When I make my breech I always cut the o-ring groove 0,4mm less deep than the calculated diameter. Say your barrel is .308″ cros section of the o-rings is 1/16 then the groove depth should be 0.417″
Cheers,
Marc
There is another thing that happens if the grooves are not cut right. If they are not wide enough the o ring compress when fired and air gets under the one on the barrel. Then the o ring goes back and seals air under it causing it to hold pressure under the o ring. This pushes on the o ring causing it to tighten on the barrel.
There isn’t much I haven’t done and had to figure out what is causing what.
I figured there was only .004 clearance, so there is more now, I can’t stand this gun, I did have a fairly decent shot chrony going, then the breech gets tight, and it shows on the speed, I’m hoping I sanded enough breech out now. I bet not though.
Don’t know why but the thicker the barrel walls the harder it is to close the valve. Especially with heavier projectiles.
That is why AF puts a stiffer spring in the .177 valve and labels it for .177.
now that sucks….
I never really played around with my condor when i had it….
doug i don’t really know these AF guns.. but i like to learn. why is it that with the larger barrel he’s gonna get tank dumps? always wondered why the barrels we’re necked down like that
Yeah you are going to get tank dump because the barrel is to thick. Someone got lazy and thought they could get by without machining the barrels at all.
You need to be at .373″-.374 and you shoud be able to use the valve you got from me. Right now it will get tank dump.
Makes for a real thin breech also.
Yeah, some big barrels the 30 is huge, Mine is .492 -.493, the breach was so tight I got a partial tank dump, the other end seals nicely though.
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Thank’s Maw! The copy cat’s I was thinking about were Commercial or read, Retail copy cats. LOL Not we tinker’s
Knife