I've tried H4350, N140, N150 and RL 15.5 with Hornady 88 gr. ELDMs and Berger 85.5s. Naturally, the $$bergers$$ shot the best groups between the two.
But hands down RL 15.5 was the best. It's almost like it was made for the cartridge. I get basically 100% case fill with the powder, no pressure signs, and 2850 FPS. I'm content with that.
N150 was in second place, but the groups were always 1/4" bigger. Bullets too heavy for N140. N540/550 could try, but they're all the same price. N150 was the only bargain and it just shoots average.
But hands down RL 15.5 was the best. It's almost like it was made for the cartridge. I get basically 100% case fill with the powder, no pressure signs, and 2850 FPS. I'm content with that.
N150 was in second place, but the groups were always 1/4" bigger. Bullets too heavy for N140. N540/550 could try, but they're all the same price. N150 was the only bargain and it just shoots average.
