More 223 load development today. I put a comment in another thread about seating created run out. With everything DANG close protocol 'y speaking.... I could induce run out on finished rounds by being a little too quick on the press handle.
Which got my curiosity pegged cause of the pride involved with getting DEAD NUTS STRAIGHT loaded ammo..... to the point of testing the accuracy of our Brown $ Sharpe metrology systems.
So,shooting and loading this a.m. paid extra attention during the very beginning of the seating op. What's happening is because of relatively soft CB's.... add in factory seater stems "cut" for JB's...
If I don't slow way down,the stem is grabbing bullet tips and "driving" them cocked. Don't matter if you do the age old,spin it 180 or not. If that bullet doesn't go cleanly up in the stem that little beeatch is gonna have .003" run out. Conversely, feel it ease up into the stem and bam,straight.
Love RCBS dies.... but mr seater stem is headed for surgery. Couple pics may help show how to do hands off,steady inspection.
Which got my curiosity pegged cause of the pride involved with getting DEAD NUTS STRAIGHT loaded ammo..... to the point of testing the accuracy of our Brown $ Sharpe metrology systems.
So,shooting and loading this a.m. paid extra attention during the very beginning of the seating op. What's happening is because of relatively soft CB's.... add in factory seater stems "cut" for JB's...
If I don't slow way down,the stem is grabbing bullet tips and "driving" them cocked. Don't matter if you do the age old,spin it 180 or not. If that bullet doesn't go cleanly up in the stem that little beeatch is gonna have .003" run out. Conversely, feel it ease up into the stem and bam,straight.
Love RCBS dies.... but mr seater stem is headed for surgery. Couple pics may help show how to do hands off,steady inspection.