Pressure signs on Magnum cartridges
How do I find the first stages of pressure signs and how many gains should I back off once I reach it ?
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On my belted mags, I always watched the primers closely. As they start losing the round edges, I make my increases in smaller increments. Then I start watching for catered or busted primers, stiff bolt lift and/or tight extraction. Of course always measure the brass too.
The new problem I've ran into is using RL17 in my .375 Ruger. I've tested loads to well passed book listed max and have no pressure signs at all. Others have found the same issue with RL17 in the .375 Ruger.
That said, RL17 was the magic number for the .375 Ruger. I'm matching .375 Wby speeds with a 23" barrel. 300gr @ 2700