Thread: What causes key holing in sub loads

Originally Posted by shooternz

Hi Bill999, You got those 200 grain flat points off me, In theory they should be stabilised with a 1:13" twist at 1050fps, I have two .308s one shoots them the other won't
it's just one of the mysteries of shooting, I have a new mould for .30 cal casts a 200 grain HP PM your address and I will send you 50 to try no cost.

That sounds great mate
Is HP hollow point?

I'm getting the feeling that I'm not setting these ones up right.
Are there hard and fast rules to getting lead projectiles right?
I'm pushing them with 8.5 gr trailboss to get under the sound barrier