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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Lest we forget, the "Short-Fat" technical idea.
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<blockquote data-quote="Mikecr" data-source="post: 1571843" data-attributes="member: 1521"><p><u>There are 3 things that make 6PPC so successful</u>.</p><p>#1 It's tiny. An extreme underbore. So it can be run at competitive pressures way beyond viable in hunting capacity cartridges(like 85Kpsi). The pressures take internal ballistics heavily into diminished returns -which is the same thing as diminished variance. There is not even a gain in weighing their powder, so most don't bother.</p><p>#2 N133 powder. This is magical pixie dust right here. Very fast and yet among the coolest of all powders (for a while it was the coolest). Cooler powder means more accurate barrel life, means fewer changes per season. This powder also burns completely in 21 3/4" barrels, producing an extremely low muzzle pressure.</p><p>#3 Limited to point blank range benchrest(100-300yds). With this, they can run short/light flat base bullets, that muzzle release cleaner, and require way less twist. They get less bag disturbance with the lower recoil & torque, so they can machinegun between conditions.</p><p></p><p>There is nothing special about the 6PPC case design, so scaling it up wouldn't buy you anything.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1571843, member: 1521"] [U]There are 3 things that make 6PPC so successful[/U]. #1 It's tiny. An extreme underbore. So it can be run at competitive pressures way beyond viable in hunting capacity cartridges(like 85Kpsi). The pressures take internal ballistics heavily into diminished returns -which is the same thing as diminished variance. There is not even a gain in weighing their powder, so most don't bother. #2 N133 powder. This is magical pixie dust right here. Very fast and yet among the coolest of all powders (for a while it was the coolest). Cooler powder means more accurate barrel life, means fewer changes per season. This powder also burns completely in 21 3/4" barrels, producing an extremely low muzzle pressure. #3 Limited to point blank range benchrest(100-300yds). With this, they can run short/light flat base bullets, that muzzle release cleaner, and require way less twist. They get less bag disturbance with the lower recoil & torque, so they can machinegun between conditions. There is nothing special about the 6PPC case design, so scaling it up wouldn't buy you anything. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Lest we forget, the "Short-Fat" technical idea.
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