general 2x feeding problem/ un-cocking

[D47H]

well here's the deal, i went out today and played some pb w/ one of my friends and my tippy went psyco on me. every three shots it would uncock itself, or, it would 2x feed like crazy, or , it the bolt wouldnt catch and it would go "full auto" but ofcourse only the first ball would come out.
it had been doing something similiar to this b4 when it would uncock itself every 20 shots or so, but that stoped so i figured perhaps it was co2 feeding into the gun freezing o rings, and it had stoped, :mad: ive used ths gun like ~ 7 times on the field and sofar its been **** 3x of 7..
when i say it un-cocks it self it basically puts off the first shot at good velocity, the 2nd shot @ 1/2 that velocity then the third shot comes dribbling out of the gun and the bolt stays shut.
N E ONE HAVE N E IDEAS??? plz hlp

[Crime Dog]

Have you ever taken it apart before to do work on it? If so, you MIGHT have put the ball detent in backwards...

Beyond that, I'm not sure. Low on CO2? Anyone else with ideas?

[baseballaddict23]

i agree...sounds like ball detent might be in backwards

otherwise...do you have valve screws in? my friend lost his screws and that caused it to shoot a few fine then a few with virtually no velocity and uncock itself

those are my best guesses

[specter542]

check the orings on the bolts. and make sure ur barrel is in all the way.
ur CVX valve may need cleaned.

[HELLBRINGER]

hey im d47h (but @ my house) so ill check that.. umm i noticed something on the co2 tank i was using, the pin is a bit too long i think, (it sticks above the top of the threads) would that be the problem?