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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hammer Bullets Pressure Testing Results
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<blockquote data-quote="MagnumManiac" data-source="post: 2832672" data-attributes="member: 10755"><p>I can attest to that. My 375 Weatherby, not factory, has a .500" freebore, as designed, it will push nearly all bullet weights at 100fps faster than a .376" freebore. Over the trace it exhibits 2 things notably different to the other chamber, a lower start pressure and a taller rise to Max pressure, which results in that faster end velocity. H4350 doesn't do this to the same level as Win 760, but it is still traceable.</p><p>All loads were maxed out at 63,000 psi as I find that the next jump in pressure is often up around 67,000-68,000psi. My rifle craters primers around that range. With it's 24" barrel, the 3,000fps it achieves with 260g Accubonds is remarkable.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2832672, member: 10755"] I can attest to that. My 375 Weatherby, not factory, has a .500” freebore, as designed, it will push nearly all bullet weights at 100fps faster than a .376” freebore. Over the trace it exhibits 2 things notably different to the other chamber, a lower start pressure and a taller rise to Max pressure, which results in that faster end velocity. H4350 doesn’t do this to the same level as Win 760, but it is still traceable. All loads were maxed out at 63,000 psi as I find that the next jump in pressure is often up around 67,000-68,000psi. My rifle craters primers around that range. With it’s 24” barrel, the 3,000fps it achieves with 260g Accubonds is remarkable. Cheers. [/QUOTE]
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Hammer Bullets Pressure Testing Results
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