I have settled on Hodgdon's Lil Gun as the most versatile powder for the 454 casull, as it works well for reduced as well as max loads. From 300 gr bullets up, it duplicates H110 and W296 velocities, with lower breech pressures.
The closest loads I have are for CP's 360 LGCs. Start at 23.0 grs Lil Gun and look for 1100 to 1200 fps. Work up to 1400 fps in the vicinity of 27.0 grs, but use a chronograph and go by velocity, not charge wt.
A good reduced load is 20 grs Lil Gun for 1077 fps...50% lower recoil and will stop anything. This velocity can be duplicated with about 12 grs of Longshot for even more recoil reduction.
I know your pain-I'm getting a 454 Rossi lever gun and there isn't alot of load data for rifles out there either! At least I have the pistol data for a start. From the little data I've seen from folks it will not take full bore 454 loads but dam close. One gentleman had some data for it and showed pressure signs at about a 1 1/2grs below max 454 loads for 300gr bullets. I would think if you can find any 45 LC data for N110 you could use that as a starting piont. I've never used N110 so take My $.02 with a grain of salt. Good luck.
A forum community dedicated to Sport shooters, owners and enthusiasts. Come join the discussion about optics, hand casting bullets, hunting, gunsmithing, styles, reviews, accessories, classifieds, and more!