300 Norma questions

WeiserBucks

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Joined
Aug 16, 2016
Messages
1,707
I've got a new barrel on the way and have been doing a pile of research. There seems to be plenty of information regarding powder , bullets and brass . I can't seem to find the proper case dimensions, such as max length and trim-to length. Any advice?
 

tbrice23

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Joined
Dec 12, 2012
Messages
3,077
Location
Indiana
It's not in ansi/saami 2015.
But I found this, it's metric of course.
Screenshot_20180410-200604.png
 

tbrice23

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Joined
Dec 12, 2012
Messages
3,077
Location
Indiana
2.492" case length.
case length max 2.662"

If my metric conversation is right.
 

Buttermilk

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Joined
Dec 19, 2005
Messages
625
Location
Good Ol' Oklahoma
0.2” would be too much... difference in case length to max case length.

Typically, it would be a few thousandths shorter, for trimmed length.

The 2.494” would be max case length.
 
Last edited:

tbrice23

Well-Known Member
Joined
Dec 12, 2012
Messages
3,077
Location
Indiana
Sorry 2.492"case length.
Max 2.509"

Forgot a 0 on my addition.
The difference is .017".
Thanks
 

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