Here is the chart I use while hunting. This load is RL 25 76.1 with a 150 SMK using Lapua 300 brass (Norma made it for Lapua) and a 215M. Had if memory serves me good results with 7828 and RL 22 but the 25 gave the best accuracy with .35, 5 shot groups with a 10fps high to low spread for 10 shots. The intent was and still is to make this into a 1K BR rifle and this was the test gun for it (going to tighten up the neck just a bit). Speedy designed it years ago and had the reamer in his personal drawer and we talked about it and he made a rifle and dies for me.
Only used the 150 SMk because that is what I was going to shoot but there is a lot more potential for this round. The velocity with this bullet with the RL 22 and the 7828 was higher – for those who want to tweek and develop it 3400 is very possible. I got almost 3400 out of one of those powders. The pic below is the rifle and a loaded round.
Only used the 150 SMk because that is what I was going to shoot but there is a lot more potential for this round. The velocity with this bullet with the RL 22 and the 7828 was higher – for those who want to tweek and develop it 3400 is very possible. I got almost 3400 out of one of those powders. The pic below is the rifle and a loaded round.