There's few guys over at Accurate Reloading that have extensive experience reloading for the 405. Some of their loads are enough to scare me, I cring at the powder charges behind 400 grain bullets and the steel butt plate.
With a wheel weight and tin alloy water dropped bullet at casting , I get a bullet harder then an ex wife's heart.. This summer I'll make some babbit metal bullets, my red alloy, has copper in the mix. This alloy is about as close as you'll get to armour piercing and not have it machined out of bar stock.
I'm sure this bullet would penetrait, without expansion, through most any critter smaller then a rhino. Hitting a large bone may shatter the bullet, that would have to be determined by some one with more experience then I.
Good hunt and perfect results.

Jim


"Whensoever the General Government assumes undelegated powers, its acts are unauthoritative, void, and of no force." --Thomas Jefferson