[MikeG]

That sounds like a very reasonable approach. Let us know how it turns out. The chronograph should tell you if the burn rate is similar to the other powders.

 

[MikeG]

Best get the chrono going before you load a bucketful of these rounds. Sticky extraction is not a good sign!

I would go back to your starting loads and get some chrono numbers before going further - be safe.