andrew7
Member
69 tmk should do wellI built one. I went 9 twist specifically to shoot the 53’s and as heavy as would stabilize with a 9 twist. Rifle +2, 3 tungsten buffers, 20” barrel, SLR adjustable gas block.
With the gas shut off it shoots really well. With the gas on it doesn’t shoot as well and is extremely hard on the brass.
I’m going to try either 70 grain Bergers or 69 TMK’s.