Reduced .243 load using 55gr & H4895

[PendletonCowboy]

I am trying to put together a youth load Using the Nosler 55gr ballistic tip bullet. I read that the H4895 can be reduced by 60% of max load (see Hodgdon link below) and in Sierra's book the 55 gr bullet uses 38.4 grains of H4895.

I also found a reduce load using IMR4198 for 70, 80, 90 and 100 gr loads. Is there a way to scale the loads of these bullets to the grain of bullet I want to use (55 gr)? I did notice that while most other powders scale down as bullet weight does up, the opposite is true for this powder. Due to the burn rate I presume?

Does anyone have such a load already?
Suggestions?

http://www.hodgdon.com/PDF/Youth%20Loads.pdf

Thanks for the feedback.