Lyman 311413 mold.
I had cast up several hundred of these in my venture to powder coated 30 cal bullets for 300BLK. The Lee 160 311 mold has been shooting good but I still have a bunch of these and curious to get it shooting well. If not well, then at least in plinking quality. I read a number of posts on this bullet where it mentions doing best around 1600fps. When I loaded hotter loads in 300blk but still within range for the powder, it was really bad. I did find a decent 308 load around 1650fps.
So far for 300blk, I ran up loads with a powder I already have H110.
I started at 13.6gr and up to 14.4gr.
14.0gr did the best at 1675fps but still a "plinking" load at about 2-3MOA
What surprised me is that when I deviated up or down by over .2gr, the groups opened WAAAAY up, like 6+MOA @ 50 yards
Its coming out of the mold 172gr and 178gr powder coated with a gas check
I had cast up several hundred of these in my venture to powder coated 30 cal bullets for 300BLK. The Lee 160 311 mold has been shooting good but I still have a bunch of these and curious to get it shooting well. If not well, then at least in plinking quality. I read a number of posts on this bullet where it mentions doing best around 1600fps. When I loaded hotter loads in 300blk but still within range for the powder, it was really bad. I did find a decent 308 load around 1650fps.
So far for 300blk, I ran up loads with a powder I already have H110.
I started at 13.6gr and up to 14.4gr.
14.0gr did the best at 1675fps but still a "plinking" load at about 2-3MOA
What surprised me is that when I deviated up or down by over .2gr, the groups opened WAAAAY up, like 6+MOA @ 50 yards
Its coming out of the mold 172gr and 178gr powder coated with a gas check
