Attached is a picture of Ballistic Products Inc's all new sabot for reloading 12 gauge round for rifled shotgun barrels. This sabots is priced right!...not like some other over-priced ones.
Dixie started testing this sabot with hard cast .503" - 460 gr bullets t a mild 1400'/" (20" Hastings barrel). There is no reason that a higher velocity will not be attained as tests go along.
While some will want to use jacketed bullets at hyper-velocity...Dixie feels that an ideal hunting load would be a 450 grto 500 gr hard cast with plenty of Meplat Area around 1700'/" to 1800'/" tops.
Any hard cast around .930" long will stabilize in the One turn in 34" of Hasting barrels.
And..some have said that a sabot will not release hard cast...Dixie did not find that to be so! We got excellent release at 1400'/"..and good general accuracy. We did not bench shoot, but rather offhand through the chrono.
Regards, James