I supposedly remember seeing RL22 loads for the .375 H&H and others, but can not for the want of trying remember where. Anyone here have any data sources for this powder? Yes, have looked under all suspect rugs,
and nothing. I am easily tempted by possibilities, so any help appreciated.
Stephen

that information is in most all present reloading manuals..Its a very popular rifle powder from the 30-06 up...I used a good deal of RL-22, RL-15, and RL-19. I would suggest the Barnes Manual..

I believe RL-22 is too slow for the .375 H&H, but I've had great luck with RL-15 in it.

I've had terrific results with RL-22 in the .378 Wby, but it's a much larger case.

I use RL-22 for my .300 Winny, .358 STA's, 7mm STW, .257 WBY, and .416 Rigby. Have used many pounds over the years and have plenty left that my bunch will use over the years. My go to powder. Good Shooting.

Thanks for all the replies. On to Barnes.
Stephen