Marrakai could answer best--

A full house 577 lite could possibly run 750 gr at 1850 ft/sec or better for around 5500 ft pnds energy.A 650 gr bullet could go ?1950 ft/sec.This will kill any Buff out there if shot placement is satisfactory.

I would think recoil with full loads should be on par with a 500 NE- stout but manageable.