A 220 grain Sierra MKHP over 11 grains of AA 1680 with a 7 1/2 Remington primer runs around 1020 fps in my 16 inch AR. It functions as it should either supressed or un supressed. I ran out of the 220 grain MKHP but had some 220 grain sierra pro hunters which are round nose bullets. I gave them a try with the same load and they much to my suprise ran as well as the MKHP in my rifle. The point of impact was close enough at 75 yards that I didn't have to rezero the rifle. The pro hunters are considerably less expensive than the MKHP and perform about the same at ranges of 100 yards and under.