I have chronied my loads using 43.9 gr Re-15, 210 feds and 175 smks at both 60deg and now just below 30deg F. Loads were tested using a Shooting Chrony Beta Master. Is a drop from about 2635fps to 2565 fps a normal drop in velocity for about 35 deg or so for this combination? Would H-4895 have this much drop for this? I have an alternative load tested at 60deg I can change to with the H. How much of a velocity swing are some of you seeing for these powders in about a 30deg increment?
Matt
Matt