I've never placed that much faith in paper targets, or gongs for that matter.

I would rather hunt some pigs with a handgun for a more realistic approach to a real live situation.
When I bought my 1st 375H&H and 458lott I practiced on rabbits, I figured any range I could take a rabbit out with them at then I could definitely take something bigger at.
I did the same with my bows, a rabbit is definitely the size of a, kill zone on a pig or deer let alone anything bigger so they make the perfect if sometimes mess real world targets.
Crows work too, if you can hit a crow then you can hit the vitals on big game, and hitting a crow with a 485lott is a great way to make them disappear in a cloud of feathers.