Large rifle vs. Magnum primers

Don't have a manual yet, but when loading a 7mm Rem mag does it require large rifle or magnum primers? Thanks.

Typically LRM, but I have heard of good results with regular LR.

I would start with the LRM and see what I could get out of it. Then I might try LR if I were not happy with the results or got bored.

Changing primers, powder type, and powder weight will change POI.

No personal experience with th 7mm RM.

Get a book or three and start reading before you start stockpiling components.

Quote:

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Originally Posted by Rick_W

Typically LRM, but I have heard of good results with regular LR.

I would start with the LRM and see what I could get out of it. Then I might try LR if I were not happy with the results or got bored.

Changing primers, powder type, and powder weight will change POI.

No personal experience with th 7mm RM.

Get a book or three and start reading before you start stockpiling components.

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What he said. get the book or some source of info that you can look at.

Some dimensional information.

http://www.jamescalhoon.com/primers_and_pressure.php

Thanks for all the great info guys. I appreciate it.