Thread: 7mm Rem Mag advice

Hi team

I need to make a decision on a load out of these three here. I changed batches of 2217 and there is quite a difference. My old load was 72.5 grains but I had quite a sticky bolt using the same load with this new batch.

So I came back down a couple and got these groups today. All at 100 yards off a bipod with rear bag.

First one is 70.5 grains with three shots.
Velocities went: 2936, 2982, 3009. ES of 73 and sd of 36.
Measured 0.55" centre to centre.



Second group went: 2996, 3030, 3009.
ES 34 and sd of 17. The second shot which is the far right impact felt like a bad shot, I definitely felt the rifle move sideways when I squeezed off. Measured 1.070" centre to centre. Should have been more like 0.65" if I hadn't messed up the second shot.



Group number three, the bolt had a slight resistance with the second two, I out this down to heat it was bloody hot down here today. Speeds were: 2989, 3030, 3044. ES of 55 and sd of 28.



I waited at least 5 minutes between groups and at least 1 minute between shots.

I like group 3 best because it's the smallest at 0.55" but the es has me thinking the second load is the one to go with. Thoughts?