hello all! i started load development for my wife 260 rem model 7 this morning. i use remington once fired brass cci br 2 primers nosler 120 gr. ballistic tips and h4350 powder coal is 2.780" i tried the newberry method for the first time. as far as grouping goes i'm satified, for a first attempt. here's the target. Uploaded with ImageShack.us group number three has a flier, probably my error, i just don't know. so here's the chrono i got on those group 1 is 44.8 grains vel. was 2744,2789,2005??? group 2 is 45.2 grains vel. was 2803,1969,1766 group 3 is 45.6 grains vel. was 2772,2002,2650 group 4 is 46.0 grains vel. was 1999,2063,2715 group 5 is 46.4 grains vel. was 2054,2867,2825. i also shot 3, 3 shot group with my 308 and factory loads, and all were around 2700 fps. so what do you long time reloaders think? i never experienced something like this with this chrono so far. after the first few odd readings i relocated the setup somewhere else to make sure the sun angle wasn't playing tricks on the chrono.( prochrono pal) all the loads were carefully weighted on a beam scale. scale was zeroed before and checked after loading session. all the shot felt the same (recoil and muzzle blast). should i use magnum primers with this powder? is it possible that it's the load? would i get groups like that at 100 yard with some bullets going 800 fps slower? i'm a bit lost right now. thank's for your help.