I shoot exclusively PP bullets so posting this question here. It is well known that .22LR subsonic loading has significantly less wind drift that the same bullets flying above the speed of sound and the .22 LR loads that drift the most are the highest velocity loadings. My PP loads in .45-70 is an elliptical 530gn bullet driven by 81.5 gn of 1.5 Swiss giving me a velocity of 1250 FPS. This is in the same ballpark as some of the .22LR higher velocity loads. Should I get less wind drift by reducing velocity to just under subsonic and also get an additional accuracy boost by not going into the transonic instability since I would be below the speed of sound at the muzzle?
Thanks Richard