Bullet sizing for the .405 Winchester


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tkendrick
October 3, 2009, 02:30 AM
Does anybody know off the top of your head what a cast bullet for a Japanese reproduction 1895 Winchester should be sized to?

I thought it was .411 but Lymans dies jump from .410 to .413. My initial thought was to go with the .413, but now I've thought about it, and I'm second guessing myself.

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Remo-99
October 3, 2009, 04:21 AM
slug the bore to get your groove diameter and size the bullets a minimum of +0.001" over the groove dia. If need be they can be +0.002" or even +0.003" over the groove dia.(for lead slugs) provided the loaded rounds still chamber without issues.

Jim Watson
October 3, 2009, 06:46 AM
Better oversize than under, if the loaded round will chamber. Lots of .311" cast bullets have been shot in .308 barrels. I am loading .411" bullets... for a .408" .40-65.

If you particularly want a .411" die, Buffalo Arms will make a custom diameter:
http://www.buffaloarms.com/browse.cfm/2,461.html

rcmodel
October 3, 2009, 01:04 PM
Jacketed bullets for the .405 being made today are .411".

With that in mind, proper size for cast bullets would be .413".

Seems like Lyman probably got it right on the sizing dies.

The .410" sizing die is for the .41 Magnum pistol.

rc

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