Jeff,
Having done some work and taking a doe antelope and a good mule deer buck with the Freedom Arms Model 83 in .500 Wyoming Express...(similar cartridge/nearly the same ballistics)
I had to read up on the cartridge as I didn't know much about it. A half inch 440gr @1350 ought to get the job done. Nice looking rig Mike!
... I can attest to this:
Yes, it will
certainly do the job
and then some!