It has been my experience that wheel weights with 2% tin added will expand down to about 1700fps. I generally use a 50/50 mix of wheel weights and pure lead plus 2% tin. That will give me expansion out past 200 yards with a Lyman 311041. Without over expanding at 25 yards, if muzzle velocity is around 2,000.
Sounds like what I'm looking for....thanks!
