I am reloading the 300Gr. LBT cast Bullet in .44 Mag with Win 296. What I have been able to find suggests loading it from 19Gr. of 296 to 22.5 gr. of 296. Does this sound right? I am loading for a Ruger Super Redhawk.

Shark -
Posted this at your request in the reloading section, as well.

Shark Bait -
The Hodgdon site is showing a max of 19 Gr of H110, which is supposed to be the same as W296, as producing 1325 FPS in an 8-1/4" barrel w/38,800 CUP, using a 300 Grain Hornady XTP. Lead bullets generally can handle a little more than jacketed, but, I'd say you're pretty darn close to redline.
Steve shows a max of 21 with 300 grain, I assume it's jacketed, as well, http://stevespages.com/429_1_300.html

R-WEST

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"What part of thou shalt not don't you understand?"
GOD

I load a 320gr. WFNGC from Cast Performance with 21.0grs. of WW296 and a CCI 350mag. large pistol primer with Fed. cases. I get 1300fps. with an extreme spread of 14fps. out of my 7-1/2" Ruger Super Redhawk 44mag. No signs of high pressure in my gun. Mark