What types and weights of bullets are you planning on trying? I have been shooting the 325-350gr range stuff intended for the 45-70. Been putting them over RL7 and I am guessing they are running at about 2250-2350 FPS range. I have a brake on mine and it only thumps about as bad as a 30-06. I have only been looking at the 400gr and smaller bullets just because here in the midwest a 325gr pill at 2200FPR should put down Deer and such with a vengeance. I guess I should load up a couple of 600gr solids in case I want to take down a runaway Ford or something.
Boots, I'll likely be doing something similar to what you are doing. Loading down for deer, etc. Perhaps something a little bigger if I go after bigger game. Knowing me, i'll probably try some 500 grain pills and stout loads just for the heck of it, and to say I did it.
I wouldn't worry to much about the throat being too short. Mine is an ER Shaw/A&B also and it has a very very generous throat, and remember with the Ultra Magazine you will have a bit of machine work to do to the action unless you have a RUM type action.
You are absolutely correct. As I said, I was simply musing on paper. Since I am not going to consider this a true dangerous Game Rifle, it will be what it is. Most of the issues with the 458 Win Mag I have read about on various forums have to do with people complaining about how the big long bullets take up powder room, leaving not enough powder to generate the higher velocities they want. The lead free bullets such as Barnes and the like are the usual suspects since they have to be longer to be the same weight. I'm simply not going to worry about it. It will still be more powerful at its useful ranges than anything else I own.
As far as the Lott goes, I'd rather have the 458WM unless you are going to hunt Elephants, Cape Buff., and the like. Here in the states the 458WM is more than enough and has cheaper brass and fits most actions and is plenty capable on its own of the above mentioned DG animals.
I might consider the Lott if I were really going on an African dangerous game hunt, or planning to visit the Pittsburgh or Philly zoo (Would they be suspicious if I showed up in a Pith helmet with a rifle slung over my shoulder? ) . But since I'm not, I think the 458 Mag will do for me here in North America.
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