How light can I go

[fishinchris]

Hey Guys I have some questions? I am reviving My 450 Ackley Magnum rifle, I came up with a stock. Now I am ready to reload I have 200, 500 gr Hornady's,soft and FMJ about 40, 350 grainers. I want to load some light loads 12 to 15 hundred FPS. I am short on powders I have Imr 4198 , H4895, and some IMR 4227 and H 322. My question is can I load down with these powders,or should I use Unique, Sr 4756 or even 2400? I will cast some bullets soon 500 gr gas check, and 300 gr fn. I want to keep everything soft for now. Any help would be appreciated Thanks Chris

 

[Walkalong]

4895 will download some, but the easiest way I know to do what you want would be to use SR-4759 or AA 5744 for medium loads (1700 to 1800ish FPS), or Trail Boss for very light loads around 1000 to 1200ish FPS. This is what I do with my .458 Win Mag. The 5744 load is about like a .45-70, and the Trail Boss load is about like a .44 Mag. It's just a little pop out of a heavy rifle.

I haven't tried 4756 or 2400 for downloading a big case like that.