Dunno much about the .38-55 other than they work well with about 55 (DUH!) grains of Swiss 1.5 FG and a 30:1 alloy 300 gr. bullet from a Dave Mos mould.. 4th from the right...
[Linked Image from i.imgur.com]

Best I could do with it at 100 yards, offhand.
[Linked Image from i.imgur.com]

I am..........disturbed.

Concerning the difference between man and the jackass: some observers hold that there isn't any. But this wrongs the jackass. -Twain