has anyone reloaded for a 7.7 jap? if so, i would like some input on the load you used (powder, bullet dia., etc..). when i reload mine, i come across a couple of problems. ill group the first 2 shots close and then the 3rd will be off several inches (factory ammo does this as well but didnt use to). also, after the shot, the primers back out of the pocket a bit. ive had the head space checked out and is ok. im using norma brass, h4350, and a sierra 303 cal bullet (the closest dia. bullet)

The possibilities are quite numerous. It might be as simple as clean barrel vs. dirty barrel or too much oil in the barrel or on and on. roger

Double check your scope bases. I'd bet money one's loose. That needs to be the first thing you look at when groups start going awry after previously sooting well. Hope you get it figured out!
Jeremy