just a point of info!
about 20 years back I purchased a DAN WESSON 445 SUPER MAG,with a 10" barrel and added a muzzle brake its very VERY accurate!
it will push a 310 grain lee cast bullet to 1400 fps PLUS easily ,and theres zero doubt its extremely effective, but its heavy and brass expensive,
https://www.starlinebrass.com/brass-cases/445-Super-Mag-Brass/
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44mag vs 445 mag
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http://www.ewkarms.com/zen8/index.php?main_page=product_info&cPath=29&products_id=93
it kills very well but don,t think the increase in power over the 44 mag makes it vastly superior , its a bit like the difference between a 308 vs a 30/06, and its noticeably larger and heavier than a S&W 29
In my elk hunt club theres now 4 guys who have taken ELK with a hand gun, three use a 44 mag, two of them used my 310 grain hard cast bullets loaded over 21 grains of H110 so a 44 mag is fully up to the job

http://dfuse.us/COhandgunhunting.html