Thread: Improving 45-70 ammo with a mandrel

My Bergara and to be honest all my single shots shooting cast or Subs seem to like land contact and no crimp (Subs especially with any bullet).
No jump at all gives very even pressure no reliance of mechanical property's of materials.
I am seating all my subs this way now in all rifle styles. no tube mags tho, that would make this difficult.