Ah-Ha! 44 grs of IMR 4320 and 140gr TTSX
An Amigo called last night to see if I wanted to join him at the range today. He wanted to do some load work up with his latest 35 Whelen and I asked him about his loads. He said IMR 4320 was showing some promise - the light came on. Why not try the powder in the 7x57.
It was classic how the 3 shot groups tightened up as the powder grains increased. 11/16" groups, but I think I can get better if my fingers are not half froze. It warmed up to 15 degrees today.
Chrony average was 2820fps.
That same charge works well in my M.98 with 140 Sierra Pro Hunter bullets but, it's slower at 2755 fps.
