lee slug question ??

[plumberroy]

How well do the the lee keydrive slugs shoot in a smoothbore ? cylinder bore gun? modified choke ? 50-60 yards max? I searched for a while and found no good answer
I was given 280 lbs of lead and there is more periodicly available (pure from medical applications)
Thanks Roy

[Hogtamer]

3 - 4 inches @ 50 yds easily attainable with right components.... many loads already posted here already . See long range challenge results for a couple to start..