TS 15.5 in with 243 with 69 absolute Help ?

[tribb]

I'm thinking of starting at 42 grains. The Alliant data says max Is 41.7 for 70 grain speer TNT. Bullet
. Suggestions? Thanks Tribb

 

[RockyMtnMT]

You will find that starting load to be very mild. It is a good point to work up from.

 

[tribb]

You will find that starting load to be very mild. It is a good point to work up from.

Ok I'll start there ! Thanks