Well I have the "same" rifle and apparently the "JAPS" made this one "right" because it shoots fine for an "Arisaka"
....my best loads will group around 1"-1.5" for five shots at 100 yds (yea it is the original barrel with sloppy chamber and all
). Some of the typical things suggested here would be worth checking....I did seat my bullets pretty far out and that made a difference with many of the loads tried. The load I'm using is H4350 and Hornady 129 grain interlocks....other than that I've really got nothing - sorry. Some did make these into 6.5X57s although that should not be too
significant in terms of accuracy.
Aside from the feelings about Japan....the rifle is one of my favorite "beaters" that gets a lot of use.
PennDog
