Loading data needed - 45-70, 475 Linebaugh, 480 Ruger

[Naphtali]

I've recently acquired several hundred Piledriver, Jr. 425-grain 45-70 bullets. I use H322 and IMR 3031 ONLY in my Marlin M1895 XLR and GS rifles. I use Starline and Winchester 45-70 brass and Large Rifle primers.

I've queried Beartooth but received no reply.
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In the ether is my Mountain Molds .476-inch 440-grain WFN PB bullet mold intended primarily for my Model 83s, secondarily for SRHs. I use H110 for heavy loads, only Starline brass in 480 Ruger, Starline and Hornady in 475 Linebaugh. I prime with Large Pistol Magnum primers.
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Hodgdon's web site has no loading data for these bullet weights.

Please identify parameters for heavy loads for the bullet weights, in the firearms in which they'll be fired. Also include for each powder a DO NOT EXCEED charge. If you can allow me some flexibility with top-end loads, I can create perfectly tailored loads.

[Lloyd Smale]

Not really an expert on the 480 but in the 475 using a 440 grain bullet in a FA gun id start at 24 grains of 110. With the deap seating dept i dont think your going to be able to use much more with that heavy of a bullet in a FA. I know i can run 25 in my linebaugh built gun with a 440 that has a crimp grove set up for it. I havent tried bullets that heavy in my FA 475 as i dont have anything heavier then 420 with a crimp grove that will work in the FA. If you want flexible you have the wrong powder in 110/296. It only really works well with at the very top end of pressures. If you want flexibility your best bet is going to be 2400 4227 or aa9 they offer a little more latitude in downloading. One bit of advise with any of these powders in the big cases like the 475 is your going to have your best luck with accuracy and consistancy with cci 350 primers. Especially with 110.

[44man]

You need to push that heavy of a boolit in the Freedom. The twist is slow. Hard to do with the deep seating but it can be done. Pressures will be high. I found the Freedom is at it's best with a 350 gr boolit.