I have not used Oregon product for years. I tried 40 cal , 44cal, 45 colt and 45 acps back then could not get them to stop depositing lead in my barrels. I have nothing except nice things to say about the company they tried to help me but the problems still existed. I was shouting PPC league at the time and just couldn't deal with the lead in my 44mag 629 or my 45 acp. They bought back all the many thousand bullets I purchased . As a side note these bullets were extremely accurate. I used several powders, 231,#5, vit 340, clays,universal, unique, 700x, 800x, red dot, maybe I would have better luck today but I have stocked up on molly bullets over the years. have never had to loo back.
good luck keep trying