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Author Topic: 460 S&W Special?  (Read 371 times)

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Offline Dinny

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460 S&W Special?
« on: October 10, 2009, 03:36:26 AM »
Gentlemen,
  Per Indiana DNR regs, rifle case length can't exceed 1.625". 454 Casull case length is 1.383" and 460 S&W is 1.800"  Can a 45 LC Handi rifle be "short-chambered" to have a chamber length of 1.625" using a 460 S&W reamer? If so, what can one expect to get for velocities with a standard 250gr jacketed bullet?  Is there really any advantage to this 454 LONG/460 SHORT (could this be a 460 S&W Special?) cartridge over the 454 Casull?  460 S&W dies could be used, right? Any issues with shortening the 460 S&W brass or the twist rate of the parent barrel?

Thanks, Dinny
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Offline quickdtoo

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Re: 460 S&W Special?
« Reply #1 on: October 10, 2009, 05:21:25 AM »
With a brass length of 1.625 and the bullet seated .300" deep, QuickLoad predicts a 100% load density of Lil'gun should get over 2500fps with the 240gr XTP Mag at under 60kpsi. But the problem you'll have is the 460 reamer may leave a step in the chamber due to the slight taper of the case if not run in to the rim, it probably won't be enough to affect function tho. Twist is 1:20, would work fine, same twist as the 45-70. QL doesn't list the 250gr or 300gr SST, but those would be my choice if you want a slightly heavier bullet.

Tim
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