Originally Posted by copo9560
I have tried the experiment and had no issues - maybe I was lucky. Better question is does anyone have any documented proof of a G20 blown up by using 40S&W? I can see beating up the extractor but that is easy enough to change. There appear to be a lot of guys trying this - curious if anyone has really had a bad experience.
Well I know a lot of folks like drama but both rounds are similiar CUP pressure with the 10mm being a bit higher.
So it's not likely you're gonna get some catastrophic failure that causes the pistol to blow-up like a pipe-bomb by using a shorter lower pressure
At most you'll damage the extractor, or the round will slip past the extractor and fail to fire.