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Old January 18, 2005, 07:24 PM   #1
osirus101
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454 caliber sizes??

Ive been readin around the forum, and it appears that the 454 shoots .451 calibers and .452 calibers, is that right...im new to reloading for the 454 but have reloaded other calibers I thought it would say 454 on the box but i cant find any they all say 45 withe the actual size of the caliber right by it. I would appreciate any help thanks
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Old January 18, 2005, 09:14 PM   #2
Rodger Peterson
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Are you talking lead or jacketed bullets. I am no expert, but what I have learned is that to find out for sure you must slug your barrel. Push a soft lead slug through it and measure diameter. Most guns will shoot them all. If you have a Ruger, chances are it is .452. If you use .454 it will seal better for less gas cutting but more pressure, if you use .451 it will rattle down the barrel with less acurracy as the gas slips by the the bullet. That is for lead. Jacketed, I am not so familiar, but I think that Jacketed bullets are going to be used with heavy loads anyway, so I would probably use smaller diameter so that you don't get excessive pressure. Maybe an expert can chime in. I am rather new to this, but I am reloading 45 Colt with lead.
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Old January 18, 2005, 11:25 PM   #3
osirus101
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one bullet i was looking at impaticular(for bear protection) was the Hornady xtp mag or something of the sort...it says 45 cal on the box but it the corner is says .452
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Old January 18, 2005, 11:36 PM   #4
Rodger Peterson
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I just looked in my Lee loading manual under 454 Casull. It says .452.
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Old January 19, 2005, 02:39 PM   #5
osirus101
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allright...just wanted to make sure id rather not have something go wrong with 60,000 psi in that hand cannon
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Old January 19, 2005, 05:00 PM   #6
RickB
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All the modern ".45" pistol rounds shoot .451"-.452" bullets. Old .45 Colts shot .454", and the groove diameter of old Smith .45s was a big as .457", but everything from .45 Auto, to .454, to .460 Rowland, now uses .451"-.452".
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Old January 21, 2005, 01:38 PM   #7
JNewell
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If you're going to load for the real .454 Casull velocities and pressures, make sure the bullets are designed for that. For example, the XTP MAG bullets are good to go in the Casull, but the XTP bullets are not, and should be held to hot .45LC levels (1200 or maybe 1300 fps). Same with cast bullets -- buy/cast them hard, and pref. with gas checks for .454 Casull levels.
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Old January 22, 2005, 03:45 AM   #8
Dusty Miller
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JNewell, I've shot hot loads in my 454 Casull with BHN 15 bullets and they held together fine, that's not particularly hard to my knowledge.
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Old January 22, 2005, 05:28 PM   #9
JNewell
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I've talked to the people at FA and Hornady about bullet selection -- they say that forcing cone wear is an issue with bullets that are subject to excess deformation due to temp/pressure. I'm not sure that recovered bullets would show any signs of this deformation, though. I can't verify what FA and Hornady are saying, but I do load according to their recommendations. YMMV!
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