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View Full Version : Downside to square bottom firing pin stop?


kylebakner
9th December 2005, 17:11
Are there any downsides to using the square bottom firing pin stop?

I know that it's the original, and JMB changed it to make it easier to rack the slide.....so if you're not a pansy :p , any reason not to use it? It slows down the unlocking.....but it also seems to me it would increase stress to the hammer......and hammer pin....even, if you wanted to get technical, cause the hammer pin hole in the frame to "egg shape" .... (after about a million rounds!)

Thanks,
Kyle

RickB
9th December 2005, 18:23
I'm sure it causes more stress on the parts, but since the original change to the part was done after years of development and military service, I'd assume that the gun was designed for the original part, and that a gun without the EGW stop is itself a pansy. It would be like wondering if a car that originally had a V8, and then was subsequently converted to a 4, could handle reinstallation of an 8? I would think so.

wichaka
9th December 2005, 18:24
If I remember right, even the originals had some radius to them..........they were not square at the bottom.

Just now days, they put more of a radius on them.............

1911Tuner
9th December 2005, 18:31
If I remember right, even the originals had some radius to them..........they were not square at the bottom.

Just now days, they put more of a radius on them.............

Yep, they did. print specs called for an .078 radius, but tolerances allowed it to be .070-.080 inch. I set mine at about .065 or so. Used it in several guns
via EGW and a few originals for yearsand tens of thousands of rounds...Nary a problem with real steel hammers and pins...MIM or castings may be different.

kylebakner
9th December 2005, 18:47
Thanks for the replies, guys....I didn't think it would be a problem, I'm just tryng to get a better handle on the forces involved on each part of the gun.....

Thanks,
Kyle