Take a look at these 2 threads. One is a type up on powerbelts that i typed up with a load that i recommend Maximum with the lighter weight powerbelts.
http://www.huntingnet.com/forum/tm.aspx?m=2510086
The other post is a guy who shot a big buck with a 245 grain powerbelt with my recommended load.
http://www.24hourcampfire.com/ubbthr.../1#Post1885610
Please excuse all my bad spelling on my thread, I have to edit and go through all the typo's.