Which gas block for suppressor

[Happy2Shoot]

Not exactly true. In May of 1964, Bill Davis (the AR-15 ammunition project manager) left Frankfort Arsenal and started working at Colt as XM16E1 Engineering project manager..While at Colt, he discovered Colt had done some kinematic studies that substantiated the closing velocities of the AR-15 studies he had obtained from Springfield Armory.. Colts new heavier buffer invented by Colts chief product engineer Forest Sturtevant was 3 times as heavy as the original Edgewater buffer..They discovered the new buffer's added weight on the dwell time or bolt opening cycle was (negligible)..

Complete rim shear with cases of acceptable hardness very seldom happens..

1964 measurement equipment was probably unable to measure half a millisecond, and yet the difference between a pistol length and a rifle length gas port is less than half a second.