If you want more power trade it for a 454 and download it to the hot side level that you want to push a 44 mag to.
that says it all right there. i dont care how strong a gun is. stick to the intended levels when loading.
alot of people think the big advantage to reloading is that you can hotrod your gun. NOT. the big advantage is being able to reach the power level you desire, and in my case with my f.a. 44 mag, that is LESS than factory ammo.
the 44 is quite capable of killing whitetails without being loaded to the gills. so i load mine about mid range power level. i am shooting a 245 grain swc, so 1100 fps is all i need. anymore powder than that and all i am doing is punishing myself. i shoot this load accurately, and a well placed bullet is most of what counts.
if you need more than book velocities, get a different caliber.