Loads for .458 Winchester Magnum

[hoytcanon]

I am talking about the TSX not the original, but the one that is sold to Buffalo Bore Bullets only

You quoted the post asking about the SSP.

 

[M70375!]

It's been a while since I messed with the 458 WM. But a couple of things to consider. The 458 WM requires enough neck tension or good crimp to hold bullet against recoil set back from being hammered against front of magazine. You can seat bullet out quite a bit for more case capacity but that will decrease neck tension and may not put crimp groove in proper place for crimping. The chances of set back are enough to cause concern for any serious DG ammo loading. If for just paper or plinking, then no concerns about set back so they can be loaded one at a time for no worries... except max chronograph readings to be posted online

I'd try 450 or 480 gr bonded bullets. Monolithics, except in much lighter weights, may be problematic because of length but I know banded monos generate a lot of neck tension- a good thing for no crimp groove seating and shallow seating. I'd try Varget, H4895 and Benchmark. Use a chronograph, published data and work up toward REALISTIC velocity objectives while watching pressure signs and reliable cycling. Good luck

Use the Lee crimp die if you don't have a grove to crimp into

 

[Hyde Hunter]

A 404 hammer bullet at 3.680 coal and a heavy load of AA2230 can get you to 300 yards and at 40 yards will go all the way thru a cape buffalo

 

[CBH Australia]

. I have a Lott also, but I am not getting rid of my 458 Win Mag.

Can you describe the difference in recoil?

I’m half toying with buying one or the other as there are a couple on offer.