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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.30 GIBBS is finally ready ...
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<blockquote data-quote="AlphaDogs" data-source="post: 1899337" data-attributes="member: 114216"><p>Playing with numbers:</p><p>W780 & 180 gr bullet.</p><p>max load</p><p>30-06 61 gr</p><p>300 WinMag 74 gr</p><p></p><p>Now if Gibbs holds 8% more we come to 66 gr</p><p></p><p>The fastest 300WM 180 (Hodgdon) load is 73.7 4955 2984 fps 62,900 pres</p><p></p><p>The fastest 06' 180 (Hodgdon) load is 59.7 SuperPerf 2840 ps 57.800 pres</p><p></p><p>So can the Gibbs pick up 140 fps with safe pressure ?</p><p></p><p>From my own experience with SupPer, I've found it to be amazing in small bore large capacity cartridges.</p></blockquote><p></p>
[QUOTE="AlphaDogs, post: 1899337, member: 114216"] Playing with numbers: W780 & 180 gr bullet. max load 30-06 61 gr 300 WinMag 74 gr Now if Gibbs holds 8% more we come to 66 gr The fastest 300WM 180 (Hodgdon) load is 73.7 4955 2984 fps 62,900 pres The fastest 06' 180 (Hodgdon) load is 59.7 SuperPerf 2840 ps 57.800 pres So can the Gibbs pick up 140 fps with safe pressure ? From my own experience with SupPer, I've found it to be amazing in small bore large capacity cartridges. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.30 GIBBS is finally ready ...
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