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Bart B. · June 4, 2014, 07:55 PM

Depending on which die maker at Winchester grinds the "bunter die" that punches in the primer pocket and stamps the alpha-numerics in the case head, small variations will be seen. I've got two different lots of Winchester .300 Win Mag brass I used to make .30-.338 cases. One lot's characters have sharp points while the other has flat ones at their edges. Easy way to keep them separated.

Some of these dies are shown in :

http://bulletin.accurateshooter.com/...brass-is-made/

Each one lasts for many thousands of cases. Then it needs replaced.

June 4, 2014, 07:55 PM	#5
Bart B. Senior Member Join Date: February 15, 2009 Posts: 8,927	Depending on which die maker at Winchester grinds the "bunter die" that punches in the primer pocket and stamps the alpha-numerics in the case head, small variations will be seen. I've got two different lots of Winchester .300 Win Mag brass I used to make .30-.338 cases. One lot's characters have sharp points while the other has flat ones at their edges. Easy way to keep them separated. Some of these dies are shown in : http://bulletin.accurateshooter.com/...brass-is-made/ Each one lasts for many thousands of cases. Then it needs replaced. Last edited by Bart B.; June 4, 2014 at 08:34 PM.