Thanks gents.

I decided to go with a powder I know.

Thus far I've fired two rounds. Both were 0.318" 200grn JSP over 40.5grns of Varget. That's a starting load for the 7,9x57js, but right in the middle of the pressure curve for the j. Also got a pamphlet with about all the loads out there for the j and js.

Now,the first round was fired remotely from behind ballistic glass as suggested by JayPee. I opened the breech, inspected the cartridge, bolt, etc for damage. Everything looked perfect, so I fired the next one manually into a dead tree about 25 or 30 yards distant.

It went right where i wanted, but a couple inches high.

I'm pretty sure the guy who had this before me had been running surplus (eek) through it as evidenced by the bore's condition. If that's the case, this old warhorse is getting a break.

Range report to follow after I test the cycling!

Regards,

Josh
Information
Warning: This is a relatively older thread
This discussion is older than 360 days. Some information contained in it may no longer be current.