picked up an almost new 21sf. about a week ago i asked about shooting lead bullets in it. some said [no] others said they been doing it for years. did some research on other web sights with similar results.most say don't shoot soft lead at upper speeds. hard lead at medium speeds will be ok. loaded up some hard cast 200 swc at about 830 with 5.0 bullseye.checked barrel after shooting 6. no sign of any lead. this will be hard believe but it's true. first group at 25 yards was 2''. second group was an amazing 1'', 6 bullets. i find that with lead bullets it takes a group or two to lube barrel with bullets you are shooting. shot several more groups all were around 1 1/2 or smaller. checked barrel when done shooting & no sign of any lead. i will not shoot a lot of lead in 21, still feel slightly uncomfortable doing it. but the resuls were amazing to say the least.