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win M12 cycling problem
bobski
Member Posts: 17,866 ✭✭✭
the worlds finest shotgun is acting up on me.[:I]
seems when i cycle my 1961 20ga skeet gun, the f.a. hangs up with the bolt 1/2 cycled....if i twist the f.a. to the right as im pumping. i mean in literally stops.
if i cycle it whilst twisting to the left, no problem at all.
i need a probable cause. a good answer will be good timing, im seeing my gun doctor real soon with other jobs and i will add this to the batch. i want to aim him in the right direction, to keep him from doing exploratory surgery and screw up a nice gun. thanks!
seems when i cycle my 1961 20ga skeet gun, the f.a. hangs up with the bolt 1/2 cycled....if i twist the f.a. to the right as im pumping. i mean in literally stops.
if i cycle it whilst twisting to the left, no problem at all.
i need a probable cause. a good answer will be good timing, im seeing my gun doctor real soon with other jobs and i will add this to the batch. i want to aim him in the right direction, to keep him from doing exploratory surgery and screw up a nice gun. thanks!
Retired Naval Aviation
Former Member U.S. Navy Shooting Team
Former NSSA All American
Navy Distinguished Pistol Shot
MO, CT, VA.
Former Member U.S. Navy Shooting Team
Former NSSA All American
Navy Distinguished Pistol Shot
MO, CT, VA.
Comments
If you twist the forearm as you cycle, you put a bind on the action slide rod, period. If you've done this for "years" the rod itself now may have a slight bend to it, thus causing the cycle problem.
You have owned and shot these long enough to know if the forearm is loose. If this is on of the guns you recently put "new" wood on look at the side of the barrel for rub marks in/on the blueing from the forearm, (usually at the rear of the travel), it is possible that the wood channel isn't quite wide enough, or you didn't get it exactly centered when you put it on!
Regards Dave
Cheers,
OleDuk[:)][:)]
ps...havent done this for years. its a new used gun purchase.
Former Member U.S. Navy Shooting Team
Former NSSA All American
Navy Distinguished Pistol Shot
MO, CT, VA.
If you have a spare action slide in your parts stash, (yes the rod is the same on a 12 and 20ga.) with just the spare action slide, put it into the receiver and cycle the gun. Is the problem still there?
Dave
when i close the gun up into battery empty and decide not to shoot, i just push the f.a. release button behind the trigger and while holding gun vertical, it drops as if it was butter all the way down and the bolt goes too. it should. its a pigeon grade. the problem seems to be only when fired and hammer is forward.
after its fired, as we know, you nudge forward, click, and cycle back. its right there...1/2 way back, it stops dead. then, with a twist to the right, go back forward, listen for a 'tink', and i can see the release button doing something, then i come back, then it continues back.
edit...with trigger out, ther is no binding or jam. it seems to be with the trigger assy in and fired that it happens.
Former Member U.S. Navy Shooting Team
Former NSSA All American
Navy Distinguished Pistol Shot
MO, CT, VA.
Former Member U.S. Navy Shooting Team
Former NSSA All American
Navy Distinguished Pistol Shot
MO, CT, VA.
action bar is straight as an arrow, dave.
no binding on mag tube or wood.
no burr on the nub that engages the bolt.
when gun is broke in two, bolt sags in back. it does not stay in lock up. to get f.a. back on, i must push bolt up using carrier to engage action bar to bolt. then i tighten it all down.
timing is good. bolt pops up in back when fired and wont fire with trigger pulled until f.a. is forward and bolt is up.
Former Member U.S. Navy Shooting Team
Former NSSA All American
Navy Distinguished Pistol Shot
MO, CT, VA.
Regards Dave
but im going to try that bolt rebuild idea.
any good gunsmith job or do you suggest someone special? if we get locked out, feel free to email me.
hammers working fine.
i redid the error. with the gun fired and clicked, i pull back the f.a..
im doing all of this ever so gentile. its not like a full blown cycle as if i were shooting it.
when the bolt is 1/2 way back it jams. with rearward pressure still on the f.a., i twist ever so slightly and you hear a click and the release button pops out and the cycle continues.
its somewhere in the assy where the f.a. release button is involved with the f.a. action bar.
Former Member U.S. Navy Shooting Team
Former NSSA All American
Navy Distinguished Pistol Shot
MO, CT, VA.