I am building my first loads with a cast 410 gr .626 hollow point (noe). I cast it fairly soft and will shoot as cast. With powder coat it is measuring closer to .6272 (micrometer). I will use 2 3/4" factory primed Cheddite hulls from BPI for all the tests. Gun is Savage 220 stainless with 3-9 Leupold slug scope.
I have selected 24.0 gr. of PRO REACH as the starting load. I basically dropped 3 gr from the load furnished by SlugsRUs with my hammer head order. Alliant shows no use above 7/8 oz so no help there.
I am roll crimping all, but, have 3 different stacks to start.
1. 1 bpi brush wad + 3/8" 28 felt + 1/4" fiber wad + .626 noe + 20 ga overshot card + roll crimp
2. 1 bpi brush wad + 3/8" 28 felt + 1/2" fiber wad + .626 noe + roll crimp
3. 1 bpi compact gas seal + 1/8" 28 ga cork wad + (2) 1/2" fiber wad + 1/4" fiber wad + .626 noe + roll crimp.
Loads 1 and 2 are based with a flexible wad but with fiber wads of different lengths. These should have a low felt recoil as compared to 3.
Load 3 is a hard stack the whole way, but, with a modern gas wad on the powder. The BPI compact gas seal (PT20GS) is a very tight seal in the Cheddite hulls with 0 powder migration. I do have a full 1 1/4" fiber wad stack in the shell. That's a lot of paper.
I will shoot these later today or tomorrow to see how they go.
Anybody see any issues or dangers? Opinions welcome.
thanks rch