I have a RCBS shellholder for my Rock Chucker. In the past I have had problems with some of my military 7.62x51 NATO cases fitting in it and I figured it was because the case rims were burred or bent from being fired from my gas guns. However I tried brand new unprimed Winchester 308 brass in it last night, and about 10% of the cases absolutely would not fit into the shellholder. They fit in the shellholder for my Lee AutoPrimer, but not the RCBS shellholder.
I measured the rims of the cases and they ran .001-.003 thicker than the examples that fit.
So I have three questions:
1. Do I need another brand of shellholder?
2. Did Winchester put out a bad lot of brass?
3. Has anybody else had this problem?
It would really suck to loose 10% of this brass.
I measured the rims of the cases and they ran .001-.003 thicker than the examples that fit.
So I have three questions:
1. Do I need another brand of shellholder?
2. Did Winchester put out a bad lot of brass?
3. Has anybody else had this problem?
It would really suck to loose 10% of this brass.