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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
McWhorter Rifles 6.5 Wby Mag.!!
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<blockquote data-quote="AJ Peacock" data-source="post: 292855" data-attributes="member: 4885"><p>According to the way I understand cartridge efficiency, whenever you neck down a cartridge (like 270Wby to .264), the pressure has a less area to push on (base of bullet), which leads to a loss in efficiency. They are probably getting those velocities, but 3275fps in a 24" barrel is definitely a HOT load. </p><p></p><p>I looked in Quickload and in simulating the 6.5x<strong><u>300wby</u></strong> (not the 270wby), which has a LOT more powder capacity (98gr vs 82gr), 3275fps in a 24" barrel is still a HOT load (68k-70kpsi depending on powder).</p><p></p><p>I hope it works out and is a safe rifle.</p><p></p><p>AJ</p></blockquote><p></p>
[QUOTE="AJ Peacock, post: 292855, member: 4885"] According to the way I understand cartridge efficiency, whenever you neck down a cartridge (like 270Wby to .264), the pressure has a less area to push on (base of bullet), which leads to a loss in efficiency. They are probably getting those velocities, but 3275fps in a 24" barrel is definitely a HOT load. I looked in Quickload and in simulating the 6.5x[B][U]300wby[/U][/B] (not the 270wby), which has a LOT more powder capacity (98gr vs 82gr), 3275fps in a 24" barrel is still a HOT load (68k-70kpsi depending on powder). I hope it works out and is a safe rifle. AJ [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
McWhorter Rifles 6.5 Wby Mag.!!
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