Posted By: pegasaurus
CCI 450 primers and H335 - 07/07/15 03:37 AM
How much if at all will CCI 450 primers effect a 223 load with 55gr FMJBT using H335 powder versus Winchester standard primers. Do I need to adjust powder charge?
This is for a 16"bbl AR for plinking.
Posted By: kmon11
Re: CCI 450 primers and H335 - 07/07/15 03:44 AM
.2 or .3 tenths less powder sounds about right, if anywhere close to max loads drop back more than that and workup again
Posted By: pegasaurus
Re: CCI 450 primers and H335 - 07/07/15 01:34 PM
Thanks. That is what I was thinking as well. I think max for the H335 is 25.3. Will probably drop .6 and see how that does.