Wondered if anybody's had problems with Reloader 19 in the cold. I worked up a load this fall using 76.5gn R19 pushing a 225gn AB at 2850fps. When I went to check the drop at 300yds yesterday, they were way lower than I figured they ought to be. Playing with the drop numbers using Noslers published BC of .55 gave a calculated velocity of 2570fps......Today after letting everything cold soak to 20F, the chronograph said 2571! My 250gn loads with 68gn of H4350 shot around 2650 today. Anybody else see this or do I just have a bad batch?