The 500 Ne New England weights 8 3/4 LBS now ! a little better with the heavy laminated stock
One shot recoil headache was the norm with full Nitro loads ! Silly really !
Like I said 45 cal 500gr @ 2000 will go into & out Ele brain ,it will work with the right bullet !
The 458 Win is under rated bit like 308 Win ,not flashy but gets the job done on the right size game
45/70 will do it to ,but why would you take one all the way to Africa when there are much better rounds to be had,unless you have already shot plenty or handy capping you self !( like pistol & bow hunting )

Thanks for the yarn !