Rifle,
I am reloading Hornady SST 20 gauge 2 3/4 cases with 31.0 grs. of Bluedot with a CCS gas seal, 4 1/4 cards and a CCS sabot. The bullet is either a T/C .50 shock-wave or a Hornday .45 250 gr. XTP bullet. I am roll crimping the cases.
Velocity is in the 1650 range but accuracy is inch or less for 3 shots.
Doc
