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General Question about SIG 220 Series

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May 25, 2023, 09:26 AM
squid8286
General Question about SIG 220 Series
I was just watching a video comparing the attributes of the P225 and 228 on YT. Some guy made a comment, saying not to dry fire these guns because it will eventually damage the two horizontal pins that hold the breech block in the slide. Any truth to this? I have dry fired the hell out of my SIG.
May 25, 2023, 09:33 AM
hjs157
quote:
Originally posted by squid8286:
Any truth to this?


Yes, but it's not the end of the world. The inner and outer roll pins securing the breech block should be replaced periodically as a matter of routine maintenance. Repeated dry firing will accelerate the need for replacement.
May 25, 2023, 09:49 AM
squid8286
Thanks for the input.
May 25, 2023, 10:05 AM
Mustang-PaPa
While a little is ok. You can take a foam ear plug and cut it in half. Take a half and put it between the hammer and firing pin to soften the hammers fall.

TheSigArmorer recommended this to me many years ago and has worked well for me.
May 25, 2023, 11:13 AM
squid8286
quote:
Originally posted by Mustang-PaPa:
While a little is ok. You can take a foam ear plug and cut it in half. Take a half and put it between the hammer and firing pin to soften the hammers fall.

TheSigArmorer recommended this to me many years ago and has worked well for me.


Good Idea. Thank you.
May 30, 2023, 04:54 PM
Broadside
quote:
Originally posted by squid8286:
I was just watching a video comparing the attributes of the P225 and 228 on YT. Some guy made a comment, saying not to dry fire these guns because it will eventually damage the two horizontal pins that hold the breech block in the slide. Any truth to this?


No. Because the front of the breech block is resting up against the rear of the chamber which is wedged in the slide and is held in place by the recoil spring which is pushing it back against the breech block.
May 30, 2023, 05:11 PM
sigfreund
Back when I was servicing Classic line SIG pistols, I saw the breech block retaining pins and firing pin positioning pins with damage that appeared to have been caused by the impact of the firing pin from dry firing. And unrestricted impact with the rear of the breech block opening doesn’t do the firing pin any good either. I recommend using a snap cap or something under the hammer to reduce the impact force.

But they’re not my guns, so ….




6.0/94.0

To operate serious weapons in a serious manner.
May 30, 2023, 05:27 PM
12131
quote:
Originally posted by Broadside:
quote:
Originally posted by squid8286:
I was just watching a video comparing the attributes of the P225 and 228 on YT. Some guy made a comment, saying not to dry fire these guns because it will eventually damage the two horizontal pins that hold the breech block in the slide. Any truth to this?


No. Because the front of the breech block is resting up against the rear of the chamber which is wedged in the slide and is held in place by the recoil spring which is pushing it back against the breech block.

I'm having a hard time picturing how this description has anything to do with the OP's question.


Q






May 30, 2023, 06:22 PM
Broadside
quote:
Originally posted by 12131:
I'm having a hard time picturing how this description has anything to do with the OP's question.


First, let me say that I defer to sigfreund's judgement on this issue. He's seen way more Sig pistols than I will ever hope to see in my lifetime.

I went looking for a picture of a P22X slide cut-away and of course got side tracked by other pictures that popped up while searching. But I see the point now. The roll pins do arrest the fire pin from its forward movement in the event there is no cartridge in the chamber. So I see now how dry practice could cause premature wear on the roll pins.