I have been tinkerin with a Lee round nose and my XDM for a couple weeks and I finally am getting somewhere. Using a .357 die, 50/50 lube, 4.0 of unique was leading way too much, accuracy was OK. Well, I "polished" the barrel with JB paste AND switched to 4.0 of WSF and after 34 rounds, the barrel was almost as clean as j-words! The gun has had over 1,000 j-words down her to break it in. Just got thinkin....maybe it wasn't the powder, maybe the polishing??? I will have to try the Unique again to confirm. The alloy was a batch of stick-on ww that included some strange, maybe Japanese, ones, I forget what markings they had, but remember the were harder than other stick-on weights but would cut with a side-cutter. Maybe some extra tin in them??? Anyway those ingots "ring" when I drop them, unlike other soft lead ingots. I will have to try coww also to figure out why I had this recent success. I WAS EXCITED TO SAY THE LEAST, when I looked down the barrel.... now recreate it in mass quantities! My friends ask me why I pi$$ with this.....well if I can get this little 9 to do that again, I can shoot for a fraction of using j-words and have the satisfaction of knowing I got it done...with a little help from the fellas here.