muleman69
USMC -1st marine Div. RVN
Did the ladder test and came up with good ES and group(velocity at 3119,oal at 3.563).Decided to try some different Oal's so starting at jam I worked down in .003 increments from 3.606 to 3.579. The day I shot these there was a drop in temp around 15 degrees and I was shooting over snow ,barrel never got over warm to touch. My question is why did my velocity's drop 149fps on the average over all these loads? I was getting better velocity at the first Oal which happened to be the farthest from lands?
