If I were still shooting a 45/70 that 350gr Rex is a bullet I think I'd have to try.
Peregrine makes something similar specifically for hogs.
Well as hogs become the scourge of ranchers and farmers all over a broad swath of the US Peregrine has finished their "HOG" bullet which is a project that's been in development for several years now. This is yet another of their monolithic red copper expanding bullets with something of a twist...
www.longrangehunting.com
Many if not most manufactuers use an idealiezed example of what their bullets look like expanded. I used some of these and the photos are pretty darned accurate.
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They literally opened up like a clover with sharp edges and points.
When looking at those shots of their expanded bullets remember how fast they will be spinning when going through the target and just how much damage they can then potentially do as a result.
It's the equivalent of using a high velocity blender with sharp edges and points on their innards.