Originally Posted by anothergun
7828 going once, going twice………….

How is it temp sensitivity wise ?

One other thing...20 years ago a guy told me get a Weatherby and forget it. At the time I was just getting into shooting and hunting, and my father in law shot a group he covered with his thumb, that his Rem 722 .222 rem made. So from there I struggled through trying to make my 200 dollar rifles shoot. Did I have to buy a 1500 dollar Mark 5 ? No. I bought, back in '14, a Vanguard, 300 Weatherby, synthetic stock, two lug bolt that was too easy to load for. My Winchester M70 shoots well, but I can't seem to fire form that easy.

Question.. According to SAMMI the case head to datum on the cases for the 300 is 2.3857 + .008 ? = 2.394 base to datum fireformed or minimum HS ?

Don’t let the internet get to you. Most of what you read is irrelevant. I have hunted my entire life with all sorts of guns, modern and antique and never checked datum. As a matter of fact, I never even heard of datum.

Full length resize your brass, watch for the incipient case separation that was mentioned earlier and load up your 300 with 7828 and your favorite bullet. It will work and the weather won’t affect it enough that you or the elk will ever notice.

Before you go hunting, run all the ammunition through the action that you are taking with you to make sure you don’t have any tight cases that may interfere with the cycling of your action when you are shooting. The 300 WBY can stretch the case enought to make it hard to close the bolt even with the gun you first fired it in…

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