300 Weatherby Mag
Active Member
Hey Guys, I'm wondering if a Lee 6.5x55 Mauser neck collet sizing die can be used to size a Norma 6.5x284 case. The 6.5x55 Mauser case length is 2.165" the Norma 6.5x284 case length is 2.170". The adjustment for neck tension for these type dies is based off of the contact between the shell holder and the bottom of the die. I'm thinking I should be able to adjust the desired neck tension by adjusting the die. So does this sound reasonable or am I missing something.