I finally got the 200 blackout rounds loaded for my brother, and I’ve put together some test loads for 7.62x54R and 7x57.
7.62x54R is with Speer 150gr SP at 2.900”, and IMR3031, H4895, IMR4895, IMR4064, and IMR4320.
7x57 is with Hornady 139gr SP at 3.000”, and IMR3031. And some old Nosler 120gr FP at 2.800” with IMR3031, IMR4064, and H4895.
JTD