A .44 Russian repro, Uberti imported by the old Navy Arms followed me home. But it is the most inaccurate revolver I have ever owned. I would like to coax it into shooting more accurately. Tried three brands of factory, dismal 4 to 5" groups at 25 yds. Then a few tests with a 200 gr (for my bulldog) and a few tests with 240 gr, pretty soft of WW's and a little tin around 750 fps to 780 fps. Dismal. .429" jacketed hollow points, worst groups ever, 6" grps.
Finally out comes the micrometer and bore slug. Uh Oh, .434 ish throats, tight .426-.427" grooves.
Suggestions gentlemen?