RoyB; N133 too fast for the 6 BR?
My load of N133 in one barrel was 31.5Gr's behind a 66 fowler and clocked them over the chrony at 3,550 FPS MV.rbertalotto said:RoyB; N133 too fast for the 6 BR?
N133 leaves a bit too much airspace in the cartridge. 31 to 32 grains of V135 fills the case to a slight compressed load....perfect!
Whatever accuracy you are seeing with N133 will only improve with N135. Use both over a chronograph and see the rather startling improvement in SD.