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Hunting
Long Range Hunting & Shooting
Has anyone tried or heard of anyone playing with this cartridge?
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<blockquote data-quote="Swamplord" data-source="post: 1453841" data-attributes="member: 2460"><p>There is a way to "smooth" out the transition of bullet from case neck to bore ..... gradual engraving of bullet with rifling reduces early pressures/spikes leading to intact bullet and higher velocity as it exits the muzzle, accuracy is enhanced as well due to lessened sudden rotational impact stresses on the bullet, that ..... along with properly coated bullets can make all the difference, </p><p></p><p>of course that throat design has to be incorporated into the chamber reamer, I have been testing that design the last few months with Norma brass and recently with Petersen brass, it works .... barrel is a Rock Creek 30" 5R 1:7 twist,</p><p></p><p>The 6.5/378 Wby would certainly have more case capacity but you won't be able to use it due to the lack of super slow powders, in my scenario I'm limited to two powders that work, one of them is very temp sensitive and the other is hard to obtain, the other weak link I found was the Norma brass suffered from "premature exhaustion" with just a few pokes, the new 300 NM Peterson brass solved that softy issue and rides hard and long</p><p></p><p></p><p></p><p></p><p></p><p></p><p>[ATTACH=full]100285[/ATTACH]</p></blockquote><p></p>
[QUOTE="Swamplord, post: 1453841, member: 2460"] There is a way to "smooth" out the transition of bullet from case neck to bore ..... gradual engraving of bullet with rifling reduces early pressures/spikes leading to intact bullet and higher velocity as it exits the muzzle, accuracy is enhanced as well due to lessened sudden rotational impact stresses on the bullet, that ..... along with properly coated bullets can make all the difference, of course that throat design has to be incorporated into the chamber reamer, I have been testing that design the last few months with Norma brass and recently with Petersen brass, it works .... barrel is a Rock Creek 30" 5R 1:7 twist, The 6.5/378 Wby would certainly have more case capacity but you won't be able to use it due to the lack of super slow powders, in my scenario I'm limited to two powders that work, one of them is very temp sensitive and the other is hard to obtain, the other weak link I found was the Norma brass suffered from "premature exhaustion" with just a few pokes, the new 300 NM Peterson brass solved that softy issue and rides hard and long [ATTACH=full]100285[/ATTACH] [/QUOTE]
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Hunting
Long Range Hunting & Shooting
Has anyone tried or heard of anyone playing with this cartridge?
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