Case Confusion

MagnumManiac

Well-Known Member
Joined
Feb 25, 2008
Messages
3,772
I wouldn’t be sizing that brass to even bump 0.00”.
Leave it as is,
FL sizing new brass is futile, it’s rare that any die will even touch the shoulder on new brass. I run ALL new brass through a die….but that’s so that I can then use the mandrel on the necks and have the neck IF that I WANT. New brass is ALWAYS TOO TIGHT IN THE NECKS.
Shrinkage occurs when brass is being pulled from elsewhere when the case is fired, I bet your OAL is also getting shorter.

Cheers.
 

0-tolerance

Active Member
Joined
May 18, 2018
Messages
41
Location
Lakewood, Washington
I wouldn’t be sizing that brass to even bump 0.00”.
Leave it as is,
FL sizing new brass is futile, it’s rare that any die will even touch the shoulder on new brass. I run ALL new brass through a die….but that’s so that I can then use the mandrel on the necks and have the neck IF that I WANT. New brass is ALWAYS TOO TIGHT IN THE NECKS.
Shrinkage occurs when brass is being pulled from elsewhere when the case is fired, I bet your OAL is also getting shorter.

Cheers.
I never bothered to check the OAL on the fired cases. You are correct, it got shorter.

Thank you all for the replies. A wealth of knowledge here.
 

Joefrazell

Well-Known Member
Joined
Apr 29, 2017
Messages
975
Reload it and shoot it again, then remeasure. If it chambers fine I would probably just neck size this go around.
 
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