Quote Originally Posted by simgre View Post
The Lee conical does not work very well in the Old Army, but it can be acceptable. Issue in the U.K. is that most people will try to shoot it with 15-20 gns of a BP substitute, inert filler and a wodge of grease!
35gns of Real BP will make a heck of a difference.

RCBS make a .458 300gn flat point mold. Casting with pure lead will see it drop from the mold just under .457. It's a gas checked design, so the heel for the check helps getting it true in the chamber. If you want, resize them to .456, but as soft lead you might as well do this on the gun during loading, it does not excerpt undue pressure on the rammer. But too many actually struggle keeping the loading lever and rammer true themselves when operating it!

Again, don't do with, "I'm only punching paper so only need a gnats cock worth of powder" and a load of other cr@p sending up the bore. Use a proper load over 32gns of real BP.

Yes it's stout, yes it is a little more expensive, but yes it works.
Apart from the great craic of shooting a whomping bullet with much gusto, I've yet to see any evidence that you can be as accurate with a conical - that's probably why target shooters still use the average 25gr of 3Fg and a ball.