Your google skills need improvement then because its right on page 13 in the MLII manual. SR4759, N110 and 5744 are all smokeless powders.

https://s3.amazonaws.com/savagefiles/manuals/manual_muzzleloader_10mlii.pdf

Stainless MLIIs are going for top dollar now. Savage did not make any in SS during the last one or two production runs and now they dont make any MLIIs at all.

Even the 10ML-BP sells for top dollar. Its the same damn barrel Savage used on the MLII except its longer. It was 26" iirc and the MLII barrel was 24". It has the same large shank as all late model MLIIs also. The breach plug in the 10ML-BP was 4140 but that year Savage switched to a hex head plug. All MLIIs after the 10ML-BP had the larger 4.40 spacing, large shank and the new style hex breach plug.

SS models are easily going for over $750 these days. Ive seen them sell for $1000+ new in box.