I tumble lube bullets for my 45 Colt with Liquid Allox as well as some 405 standard bullets for my 45-70. I have never encountered any leading with any of them. The 45 Colt runs under 1,000 fps, and the 45-70 runs 1,000 to 1,300 fps. Heck, I don't even size them. My alloy is wheel weights, and after measuring a bunch of them, they were good to go without the sizing. Target use, mostly with the 45 Colt, and perhaps deer at close range with the 45-70. With those bullets, I snipe empty 12 guage hulls with my buffalo classic. THEY SHOOT REAL WELL.
