My daughter scored a nice 7.7 Jap rifle, looks to be unfired, still gummed up with cosmoline. It has the artillery sights and the Crysanthemum stamp. I suspect it to be about a 43. The only problem is, no ammo. Have any of you made 7.7 ammo from a .30-06 case>? The process seems to be to run it thru the dies then load it and fire form it. The Jap case is 2.3 and the 06 is 2.494. Of course 0.2" of case neck has to be trimmed before loading and fire forming.