Trouble with perfecta ammo

Reminds me of a case of Samson IMI 38 SPL ammo bought long ago. Those were some hard primers where 7-10 in a box of 50 took two strikes to go. In my case the 586 mainspring screw was able to be turned a bit more and that ammo wasn't a problem then on. That same ammo in the 686 or 66, fired fine.

I toss range pick ups if they are perfecta brass and a few others.

No problems with perfecta in 45 acp. Been shooting and reloading it for sometime now.

Check your mainspring strain screw. On older S&W's the screw length was set at the factory to provide reliable ignition. Turn it in all the way. It could have loosened some and it is common for people to back it out some to lighten the trigger pull but reliability can be affected with harder primed ammo.

On the newer fixed firing pin guns the strain screw had adjustment at the factory but the length of the screw isn't calibrated at the factory. The strain screw can be turned in a bit, maybe a 1/4 turn to increase the firing in strike strength to insure reliable ignition.

So far I have had zero issues with Perfecta ammo

joem1945 said:

I toss range pick ups if they are perfecta brass and a few others.

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Is the brass too thin on Perfecta?

Zendude said:

Is the brass too thin on Perfecta?

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I have read other comments relating to off center flash holes...........personally I havent ever looked or tried reloading it

I've spent several hundred rounds of Perfecta .223, and a few hundred of .308 ammo without an issue. I've only spent 100 rounds of their .38 special, but probably twice that in 9mm, and the same again in .357 mag. That is not a terribly large sampling obviously, but none has given any issues at all and I've saved all the brass for reloading.
I'm thinking that if there were a way to increase the firing pin's strike I would certainly try it.

I suggest that you clean and lubricate the internals of your 681. It is probably dry with old lube turned into varnish.