Originally Posted by Maineboy
The 7.62X54R is a pretty easy cartridge to work with. If your boolit fits the barrel, you should be able to get good groups with your Lee 312-185. However the guns it comes in comes in can be pretty rough, especially the wartime production runs. My M44 and my 91/30 are pretty accurate, but the trigger pulls are terrible and the bolts work like the action is filled with sand. One of the first milsurps I bought after I obtained my collector's license was an M39 Finn. Compared to my two Russian models, this one is a Cadillac. I've done alot of shooting with that gun and tried an awful lot of bullets and powders and all of them worked well. I settled on a load of 18 grains of SR4759 and the Lyman 311291 as my favorite. When I got my 91/30 and M44, I found both guns liked the load as well. For some reason. I've never chronographed that load, but I'll bet it's right in your 1400-1600 range. If you're going to use 2400 powder, I'd start with 16 grains.