PMC X-Tac Match 223 77gr OTM Ammunition 20rds - 223XM

1 in 8 Barnes precision.5moa. That is all

Bought this ammo to use for matches where we occasionally have up to 750 yard shots (typical 50yd -600yd). In testing the ammo with a Spike's 1:7 16" LE barreled upper with an adjustable gas block I only averaged 2440fps with an SD 40 using a magnetospeed over 25 rounds fired. It was 102F out so I would expect a bit less velocity when it is cooler. It is advertised to produce 2790fps out of a 20" barrel. This is marketing hype B.S. as you only lose 25-50 fps per inch of barrel in .223. I saw another study showing they only got 2450fps from a 16" barrel and I should have believed it. Groups were avg maybe sub moa (had a 12-15mph gusty cross wind so was not really trying). I just tried it in my 26" WOA upper today and it only shot 2617 fps SD 28 from one lot and 2642fps SD 32 from a second lot (10 rounds ea). My hand loads with 24.5gr CFE 223 and 77 SMK in PMC brass shot 2803 fps with an SD of 20 from the same 26" barrel same day 77F outside. This ammo does not provide the advertised performance and I don't believe it's worth the money.