Daryl --

Sorry to annoy but I think the max loadings of both the 416 Remington AND the 458WM are close at 54,000 CUP.Unless I am in error the 65,000 for the 416 Remington may be referring to PSI not CUP.

http://www.larrywillis.com/windex.html

and

http://kwk.us/pressures.html

Unless I an mistaken this suggests that a max loaded 458WM and 416 Remington Mags run at the same high pressures.

I still want that downloaded 458 Lott if I am hunting in 130 degree heat!!