Bismuth does shoot very tightly in my Lefever. When shooting ducks this year I held my fire until all the autos were empty and then went to work. Several birds killed had been hit by other shooters but some had not been shot at at all. Most of my shot were in the 30-35 yard range but several were 50 plus yards in an attempt to anchor birds that had been hit by others. One large Mallard, which had been hit twice by others, was anchored at well past 50 yards. I swear you could count one, two, three from the time I shot until the duck was hit. It was stone, cold, dead. Made a believer out of me for Bismuth and made me wish for the good old days of lead again.
