Thread: 7x57 subsonic

depends a lot on what shape the bullet is

it will likely be around 9 grains but i would work my way down from 11 at .5gr increments

if a bullet gets stuck from too low charge its a real pain

if the sides of the bullet are flat and have heaps of bearing surface it will take more powder to get it moving

I wouldnt bother building a load for 20 projectiles none will be left by the time load dev is done

I used ballistic tips for a long time at sub speed and they work great as skull crackers but they were pretty expensive for essentially FMJ performance as you could damn near reuse any bullets you recover