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Hunting
Long Range Hunting & Shooting
.30-378 Weatherby Shooter
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<blockquote data-quote="J E Custom" data-source="post: 1141202" data-attributes="member: 2736"><p>Barrel life and brass life is not an issue with most long range shooters, But safety is a big issue.</p><p></p><p>LazzInk gave you some good advice and even though the Mark 5 Weatherby is a tremendously </p><p>strong action 65,000 to 70,000 psi should be the limit.</p><p></p><p>I build lots of rifles on the Mark 5 action because it is such a strong action but you are exceeding </p><p>the design pressures and encroaching on the safety limits of the Mark 5 design.</p><p></p><p>Roy Weatherby exceeded 5100 ft/sec with the 30/378 while testing for the military and determined that it wasn't worth the problems that he encountered just to get that much velocity.</p><p></p><p>I would recommend checking your chroney for accuracy against another chronograph just to verify</p><p>the velocity (These velocities seem excessive).</p><p></p><p>Have fun, but be safe.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1141202, member: 2736"] Barrel life and brass life is not an issue with most long range shooters, But safety is a big issue. LazzInk gave you some good advice and even though the Mark 5 Weatherby is a tremendously strong action 65,000 to 70,000 psi should be the limit. I build lots of rifles on the Mark 5 action because it is such a strong action but you are exceeding the design pressures and encroaching on the safety limits of the Mark 5 design. Roy Weatherby exceeded 5100 ft/sec with the 30/378 while testing for the military and determined that it wasn't worth the problems that he encountered just to get that much velocity. I would recommend checking your chroney for accuracy against another chronograph just to verify the velocity (These velocities seem excessive). Have fun, but be safe. J E CUSTOM [/QUOTE]
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.30-378 Weatherby Shooter
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