ps: here are a couple of links tell me if i'm delusional and merely see apparitions:
http://www.winchester-guns.com/prodinfo/catalog/md94/m94_traditional_cw.htm
http://www.winchester-guns.com/prodinfo/catalog/md94/m94_traditional.htm
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When in doubt, do a nuclear strike.
[This message has been edited by Curtis_Lemay (edited 12-16-2001).]
I think I first heard about it on sixgunner.com in the campfire discussion board a few weeks back.
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In the share your favorite loads forumn, I've posted most of my 480 loads http://www.serveroptions.com/ubb/Forum25/HTML/000068.html These are from a 7 1/2" revolver. I'd expect the rifle to have a 300-400 fps increase over the revolver.
The 480 cartridge is the 45-70 rifle case blown straight for a .475" bullet, trimmed to 1.28", and with the rim reduced in dia. You'd think as a 480 nut I'd know the rim dia, but I don't recall offhand, I believe it is the same dia as the 45 colt.
As far as bullet weights, there are jacketed bullets are available in 325, 350 and 400 gr, and cast bullets run the gammet from 310-460 gr, though most common would be 370-440 gr. I would think a 440 gr bullet at 1500 fps would be about the max you could expect from a 20" rifle. Not totally impressive perhaps, but accomplished with a mere 19 gr of powder.
I think it would be a most competent pig gun!
All in all, lets say it is loaded to 1500 fps with a 400 gr blunt nosed cast bullet. It would be a dandy whitetail and pig gun. This would actually slightly outclass the blackpowder 45-70 loads.