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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Most powerful lever action cartridge
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<blockquote data-quote="Extremist458" data-source="post: 1522315" data-attributes="member: 10561"><p>Some of the common discoveries were as you would expect. For instance, since bolt thrust (maximum) is a constant, increasing the cartridge diameter yielded no net gain of energy. The higher pressure and faster powders in the 45-70 created more efficiency and negated the gain of larger case capacity in the Alaskan cartridges. We seen gains with larger bore (.458 vs .500/.510) in shorter barrels, and this has strong advantages, but costs in penetration and range. The speed drops with very heavy bullets in 458, where the 50s handled the same weight well. Take into consideration the longer actions or action tuning must be applied to both. Over all the lengthened 45-70 seemed to be the best performer. Even in just the WWM chamber, I drove GS Custom 400s at 2275, 350s at 2500, and 300s at 2700+</p></blockquote><p></p>
[QUOTE="Extremist458, post: 1522315, member: 10561"] Some of the common discoveries were as you would expect. For instance, since bolt thrust (maximum) is a constant, increasing the cartridge diameter yielded no net gain of energy. The higher pressure and faster powders in the 45-70 created more efficiency and negated the gain of larger case capacity in the Alaskan cartridges. We seen gains with larger bore (.458 vs .500/.510) in shorter barrels, and this has strong advantages, but costs in penetration and range. The speed drops with very heavy bullets in 458, where the 50s handled the same weight well. Take into consideration the longer actions or action tuning must be applied to both. Over all the lengthened 45-70 seemed to be the best performer. Even in just the WWM chamber, I drove GS Custom 400s at 2275, 350s at 2500, and 300s at 2700+ [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Most powerful lever action cartridge
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