Yes, I had alot of trouble with lead until I did two things...one was lap the bore with JB Bore Bright until it shines like a mirror. {when looking at the surface of the bore with a borescope} Two was to cut a Taylor throat in all three EDM barreled guns I own. No more lead trouble at all, in fact I haven't had to "delead" the bores on any of them in a year worth of shooting cast bullets. The surface of the bore as new appears bead blasted in a borescope and I believe this helps lead stick. The forcing cones were really rough and chattered as well which I am sure didn't help anything. I have never had an accuracy problem with the newer barrels, all three guns are very accurate groupers. The top of the lands appear radiused not flat, this may contribute to some leading as well but if the surface is mirror smooth it gets harder for anything to stick. Takes a little doing but worth it to me.