Revolver miss-fire

joe-nwt said:
I'm finding it hard to believe a firing pin made the dent like that in a brass case.
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It happens.

With the gun out of time, its probably caused by a worn hand, but it could be a worn bolt or worn cylinder stops as well. If the OP intends to continue using it, he needs to advance the cylinder by hand to ensure it locks in place, and fire it SA only. I bought an old Colt Army Special that was out of time and I had no problem as long as I advanced the cylinder by hand to ensure it locked in place. After having the gun for some time, I've only now sent it out to get fixed . . . it might almost be done I hope.
 
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TACTICAL111 said:
To the OP. My S&W 625-3 is in at a reputable gunsmith to fix the exact same issue you are having.
Only difference is it is happening 2-3 times per 6 rounds.
Will let you know what the outcome is. Should hear from him this week.
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it's a separate issue with the 625. It comes in two parts. 1 smith made a bunch of minimum tolerance firing pins, and they're a bit short and 1) the strain screw for the mainspring is stainless steel and too soft of an alloy, so it tends to mushroom, and shorten up, relieving the tension and lowering the hammer impact force. The two together add up to light strikes. Took me FOREVER to solve this issue!
 
maxman1 said:
Found it.
blown_up_gun.jpg


The owner swore the ammunition used when it blew up was that box of Winchester Super X.

Like I said earlier, Colt blamed the ammo, Winchester blamed the gun. The outcome is unknown.

Based on the evidence presented, it's likely a factory double load, or could have been an overloaded reload presented with a partial box of factory ammo.

But whatever it really is, it's almost impossible to determine.

Sooo, probably not the same problem you're having with your Astra.
Click to expand...

That's an overload failure, not a timing issue.......so if it was factory ammo, that's the culprit. Firing out of index would never cause a cylinder to fail like that
 
Cocked&Locked said:
it's a separate issue with the 625. It comes in two parts. 1 smith made a bunch of minimum tolerance firing pins, and they're a bit short and 1) the strain screw for the mainspring is stainless steel and too soft of an alloy, so it tends to mushroom, and shorten up, relieving the tension and lowering the hammer impact force. The two together add up to light strikes. Took me FOREVER to solve this issue!
Click to expand...

Thanks for the info. Casey took it out to test this weekend. Hopefully get it back soon if all is well.
 
Update to the OP.

This is what my 625-3 was doing: (identical to you) These are practice dummy rounds in a moonclip with the spent primer seated back in.

DSCI0184_zpsc1a22a68.jpg


Dropped it off to a reputable gunsmith to fix the issue.

Cylinder notches were de-burred and polished, pistol disassembled, inspected and test fired with my ammo and moon clips provided, then returned to me.
2 hours of dry fire practice later that night, it was doing the same thing.

Returned the next day to gunsmith . Fixed on the fly while I waited
Cylinder Stop was replaced and hand fitted.
(sorry, don't know the exact part name) Black line points to the part.

IMG_2551_zps5b450878.jpg


300 rounds the next day + 1 hr dry fire practice that evening, no issues.
First Revolver IPSC match the next day (90 rounds).........flawless (apart from me)
Several hours of dry fire practice since, no issues.

My revolver is a -3, made in 1989, and apparently the Cylinder Stop (?) was worn out and the cylinder notches burred, which caused the cylinder to skip.

Hope that helps the OP and some info for the members here.

To the gunsmith...thanks Casey
 
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