The wound channel and exit hole size with that 450-gr HYDRO on a Sambar should be interesting. May the red gods smile on Sir Russ.
And Sir Larry has got me remembering to try a 400-grain hardcast-PCP-GC at 2500 fps. I am sure my alloy can handle it if some of the Cast Performance Bullets have been successfully used at 3100 fps.
I want to be able to use all sorts of 400-grainers at 1800 fps to 2600 fps. If a 400-grain soft is insufficient then a 400-gr FN solid of copper or brass monometal will back it up. If bullets from 250 to 550 grains are eminently practical then simplify it to 400-grainer for ultimate practicality ..