Reduced loads for cast 7.62x54r

[mac1911]

I am loading cast boolits for 7.62x54r. I have the LEE Mold C312-18-1R 185 Grain and the Lee 312-160-2. I use gas checks with both and power coating. I would love to get a good starting load for these that maybe others have used with any powders.

Also if at all possible I would like to get load data using these rounds with H380 and/or Ramshot Big Game. These two powders are what I have on hand right now. Everything is so crazy with getting powders and primers right now I don’t know if I will be able to find any 2400 or IMR. If I can use what I have on hand till things get a bit more predictable in acquiring reloading supplies that would be great... Thanks all!

finding powder is tough right now but its better to hunt down a more task friendly powder than to burn powder that can be less ideal.
Trailboss has been on the shelves locally up until my last visit a few weeks ago. works for fun target loads.
2400 works well with my 314299 as does 5744 and H4895. IMR 4198 was recommended to me but I have since sold my 54r rifles.

For target shooting I have found 1600-1850 fps about the tops for 200 yards. 3 different bullet styles and 4 powders found accuracy to flounder past 1900 fps.

[M1fuzz]

My Finnish M39 likes 311299 bullets over 17 grains of IMR-4227 and WLR primers. Does very well out to 200 yards.

[samari46]

Rifle 1935 Finn model 27
Bullet Lyman #314299 wheel weights plus 2% tin
NNY old Hansen Cartridge company cases
Primer Win LRP
powder IMR4759 20.0 grains
Estimated velocity 1700 feet per second
Bullet sized to .3135 bore on rifle is .3115 so 2 thousandths over nominal bore diameter. Bullet lube Javelina
Frank