Re: 300 WSM Question
Chamber out of round?
Bolt face not squared to action?
Running too high pressure with soft brass to get that much flow?
I dunno. Could be a lot of things.
I shoot 65gr RL-17 with 180 Accubonds, Nosler brass, & Fed 215 primer. I've loaded up to 66 gr, but backed off.
From what I've seen, RL-17 has a pressure curve that goes from flat to vertical in a Very short swing. Most folks that I've talked to agree that RL-17/300WSM combo likes the "warmer" loads for accuracy, but it'll let you know without a doubt when your on the edge of having a come apart if you're paying attention.
I don't know what the recommended loads are for 165's, but my guess is you've got something going on with your rifle, considering your previous posts on the subject
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