Bugger,
We've gone through this before: W760 is EXACTLY the same powder as H4141, and has been for a long time. It's made by the same factory, in the same way, but goes into differently labeled canisters.
The reason SOME loading manuals list slightly different loading data for 760 and 414 is different manufacturing lots burn slightly differently. But ever since Hodgdon acquired the Winchester powder line (which has been a while now) their data for both powders is exactly the same, down to the 10th of a grain, feet-per-second and pressure.
