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View Full Version : Large rifle vs. Magnum primers



CRNA
11-08-2010, 07:52 PM
Don't have a manual yet, but when loading a 7mm Rem mag does it require large rifle or magnum primers? Thanks.

Rick_W
11-08-2010, 09:37 PM
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.

Blue Avenger
11-08-2010, 10:26 PM
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.
What he said. get the book or some source of info that you can look at.

dcloco
11-08-2010, 11:13 PM
Some dimensional information.

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

CRNA
11-09-2010, 08:28 AM
Thanks for all the great info guys. I appreciate it.