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AR15.COM
7/27/2009 7:56:57 AM EDT
Would there be a noticeable difference in point of impact between 180 grain FMJ .40 S&W  and a 155 grain hydro-shock at 21 feet? It's coming out of a 5 inch XD if that makes any difference. I finally got some "cheap" practice ammo and don't want to burn up my hydro's to test this (I'm broke as hell).
7/27/2009 8:09:52 AM EDT
[#1]
define noticeable.

I know I saw 2 different groups with my a Colt 45 (not acp) shooting 250grain vs 200.
7/27/2009 8:16:36 AM EDT
[#2]
Not a whole lot at 7 yards but, yes, you'll likely see a difference in POI.