I assume this is based on the 458 WM? Seems like a larger bore version of our old "2 x 4" round for deer hunting in the WI swamps and heavy timber. WW '94 rebarreled to .40 and cartridge opened up to and trimmed to 2 inches. long time ago...
Sounds like a nice project, please keep us informed of your results.
Blasternaz
Quote:
Originally Posted by LouBoyd
It will be on a Rem 700 Long action using a 458X2 American cartridge (sixth in the row shown above). I haven't finished it so I can't tell you whether it will even shoot.
I chose the 458x2 over the 458 Socom because it has a much higher pressure rating. I'm of the opinion (but no solid proof) that fast burning high pressure minimum volume loads (within reason) for subsonics give low muzzle pressure and (most important) the smallest velocity dispersion. I'll find out if that's true with this beast. It will be a 16" barrel (to be legal). 10" would be a bit better ballistically. I'll experiment with lubrication to minimize bore friction. That may or may not prove to give better velocity uniformity but I expect it will.
Practical use? None. I'm only interested in learning about ballistics.
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