Old 7x64 load data

[MiG25]

I pulled some Czech 8x57 milsurp to check on the powder condition, my first thought was "that's IMR 4064"

I ran some of this stuff over the chrono, I believe it is 178gr bullet and the box says the charge is 2.83 grams, which is 43.7 grains.

Velocity average was 2425fps, very much in line with Nosler's data with the 180gr Ballistic Tip and IMR 4064.

I'm not saying it is IMR 4064, but it may be pseudo 4064.

That particular 8x57, the powder looks fine, 20% of the primers are duds.