Pete,
I have used the Lyman slugs with great results using Universal Clays powder. I load them to specs given in the insert that came with the mold and if you are going to be doing much shooting, you might as well buy the mold. These were loaded in AA white wads to about 1450 and are very accurate and hit very hard. If you will send me your mailing address I will be glad to talk to you some more about these. Bob H.