I don’t reload for this round so my comments are going to be general here.
After a review it appears that Hodgdon Lil Gun, IMR 4227 and Alliant 2400 are the stars for the lighter bullets approximately 250gr/300gr up to about 350gr/375gr. Some mentions of H110 for lighter bullets as well. Above 375gr the go to powder seems to be Alliant Reloader 7. I am a Hodgdon/IMR fan for most of my reloading, the Alliant powders are excellent. I just got into Hodgdon powders during the shortage period due to Hodgdon being the only powder I could get most of the time. Before 2008 I mostly used IMR and Alliant powders. I used a lot of the old standards made by Alliant like 2400.
The data I provided below uses CCI #350 LPP Magnum. This is the only LPP I used in my magnum loads.
Here are the recommended powders and loading data from Alexander Arms:http://www.alexanderarms.com/images/pdfs/beowulf_reloading.pdf
Generally speaking YG’s have mostly had the best prices except the fishing supply store has good prices as well (I forgot their name). But YG’s has the best selection.