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Old June 19, 2007, 04:57 PM   #1
YosemiteSam357
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.452 vs. .451 bullets for Long Colt?

I've done a fair amount of reloading, but only for a single rifle caliber. I'm about to start loading for .45LC for revolver (Ruger Blackhawk), and I'm finding that .452" bullets are just as common as .451" bullets. Are the .452s acceptable in this application?

I've seen a few topics which reference using the .452s, but figured I should ask before ordering anything. I'm specifically looking at 300gr plated Raniers.

I assume the .452s generate a lot more pressure?

-- Sam
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Old June 19, 2007, 05:06 PM   #2
Arub
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The .451 is generally used for the .45auto. I have used the .451 200 grain swc and the 230 grain lrn in the .45 colt with excellent results. I have also used 250 and 255 grain bullets in the .452 diameter with excellent results also. No problems either way.
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Old June 19, 2007, 05:40 PM   #3
The Real Wyatt
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It's pretty simple.
Lead bullets - .452
Jacketed/Plated bullets - .451

I find that all my 'Hawks prefer .452 hard cast lead. After years of trying different bullets, I've settled on LaserCast bullets from Oregon Trail. They make a very nice 300 grain bullet in .452 which yields excellent results when loaded "Ruger Only".

For the big thumper loads I use Starline brass, WLP primers, Hodgdon H-110 powder and Oregon Trail bullets. Extremely efective.

I suspect that if you use .451 lead bullets in your Blackhawk you're gonna see leading in the forcing cone and the first part of the barrel. Leading has ceased to be a problem for me since I've started using Oregon Trail bullets exclusively.

Enjoy your Blackhawk. Those .45s can be addicting (trust me, I know) If you ain't careful you'll wind up with a dozen or more guns in .45 colt. An extremely versatile caliber, although I doubt they'd be a good choice for prarie dogs.
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Old June 19, 2007, 05:52 PM   #4
ligonierbill
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+1 on the Oregon Trail bullets. I got my .45 Blackhawk last month and have had great shooting with their 250 gr RNFP. Just ordered some 300 gr. No leading, excellent velocity. I'm still working on the accuracy part.
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Old June 19, 2007, 05:54 PM   #5
YosemiteSam357
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Thanks for the tips. I'm going with the .452 Rainier plated 300gr for now. I can pick up some .451s locally if I want to try those.

I generally prefer jacketed bullets as I hate pulling lead out of the bore, but price will have some factor here.

Can't wait to try out the new shootin' iron. It's my first .45 Colt, and it's a nice one: Bisley convertible .45LC/.45ACP. I've got two other Bisleys, but they're in .22 and .357. Oh, and I'm picking up a .44 SBH Hunter, too... (It's been a good week, what can I say?)

-- Sam
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Old June 20, 2007, 01:02 AM   #6
stinger
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With lead, you'll probably have better results with .452 or maybe even larger. Most (if not all) modern 45Colts are .451 diameter, so stepping up for lead is a safe bet.

With jacketed bullets, .451 or .452 will do. If memory serves, Hornady XTP's in heavier than 230g are .452.
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