I have a Remington Model 700 CDL Stainless Fluted in 300 WSM with an HS Precision stock. Using a Leupold VX III 4.5-14 scope with Talley rings and bases. Factory trigger is turned down around 2.5 lbs. Feels crisp although I would definitely like to get a Jewel trigger and be down around 1.5 lbs. The gun likes to shoot two right next to eachother or almost on top of eachother and one goes a fly. I have shot two different 1/2" 3 shot groups. Quite a few 3/4" groups. But now groups have started to go around 1 to 1.25". One of the loads that shot 1/2" was 180 grain SST with 68 gr IMR 4831 and 215M primers. I've tried to repeat this and keep getting the first two shots almost on top and then one 1 to 1.5" away. Bullet is around .020" off the lands. Go further or closer? I've tried waiting till the barrel gets cold and I've tried shooting right away. Temps between 55 and 90 deg with the same results. Tried with a clean barrel. Dirty barrel. Same results. Go to different load? Fine tune, go up or down a .5 a grain? I was kind of liking this load as velocity has been chonoed at around 3050 fps. I have several other loads that like to do the same thing. In Montana temps can definitely get down to around zero during Elk season and I've been told the magnum primers perform better in cold temps. Any truth to this? Or should I give 210M or BR2 primers a shot? I have both. I also have WLRM and Rem 9 1/2. Trimming cases to 2.090" with RCBS power trimmer. Using lyman digital scale/measurer. Maybe needs to be recrowned? I would guess rounds I've got are around 400. I want to get a Sako ejector done, and now I'm thinking I just need to rebarrel at the same time?