It doesn't matter what powder YOU want to use. What matters is the powder that the RIFLE wants to use.
My friend and I messed around with military rifles for about 20 years. This included several years of mucking about with Moisins. We found that the rifles ALWAYS shot best with a .312 slug and that most of them really like 4895 or 4064 powder.
Not surprising: du Pont built several powder mills in the USSR in the 1920s, so it makes sense that the rifles do well with that type of powder. The original plant for the 7.62x54R (originally called the `Three-line 1891g cartridge`) was built by Greenwood and Batley of Leeds (one of the original contractors for the .303 round) and shipped to Russia. Russia only went metric after the Commies made everybody do it, same as here.
You can just buy one type of components and load all your 7.65x53, .303 and 3-line ammo with the ame stuff.
Everybody and his DOG makes dies these days. They run from about $25 for a set of Lee, `way to Hel (little town in Norway, just down the coast from Throndheim) and gone up there, but they all work.
Starting with a .303 load makes sense, but don`t go TOO much above it. Remember, American loads are designed for the WRONG BULLET: a proper .312 will generate more pressure than a .308 slug....... and you ARE working with rifles that likely were built when your great-grandfather was a pup.
Above all: have fun!
That`s what it`s all about.
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