My M&P sport 15 .223/.556 will not shoot FMJ bullets accurate. Does anyone else have this problem? My rifle will shoot the polymer tip bullets very accurate (Hornady V-max, Nosler Varmageddon Freedom munition V-max). I am just looking for the reason why the rifle shoots the fmj bullet so much different. Love to here what you guys have to say. FYI 1 inch group with polytip at 100 yds 3 to 4 inch group with fmj at 100 yds. Thanks.