Another SA 30 Cal build

806guns

FNG
Joined
Mar 24, 2024
Messages
90
Hey guys im wantIng to build a 30 cal SA magnum. With lapua coming out with 300 WSM brass it seems like a no brainer. I am seeing threads with guys shooting the 210 bergers. I would like to stay in the 190-210 range for a SA Mag. Is the 300 wsm the better 30 cal SA mag cartridge? I see the 300 SAUM and 300 SS as well. Yes I know the oal restriction being a SA.
 
Joined
Sep 6, 2018
Messages
493
I could be wrong but I think the 300 SAUM would be easier to fit in a short action with the longer heavier bullets because of the shorter overall case length. I imagine speeds would be slightly lower but probably less than 100 FPS or so. Easier to find brass or just buy factory ammo for the WSM.
 
Joined
Jun 18, 2019
Messages
1,663
I’m going to build a 300 SAUM to shoot the 185 juggernaut. Plenty of high quality brass to last the barrel life right here:

 
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