beantownace Posted July 14, 2020 Share Posted July 14, 2020 Hey all, I purchased a new M4 beauty and about to take it to the range first time next week. So I understand that the M4 likes high FPS ammo and for good reason. I dislocated the shoulder a few years back ski accident so I want to ease into the first rounds to get a feel for 00 buckshot with it. Any idea will any of the Winchester AA work such as the light load at 1145 FPS cycle? From what I am gathering it really needs 1200 FPS and above. I have a small pack of Hornady 1345 FPS I believe I am sure that will cycle but ammo hard to find lately. Looking for an option before I go shopping this week at Bass Pro etc. Slowly make my way up to slugs.... ;)... Thanks for any info from non rookies on here. Quote Link to comment Share on other sites More sharing options...
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