It's a pity MPro7 doesn't make their Ye Olde MPro7 formulation anymore. They brought it out right at the peak of the last wave of cheap milsurp around Y2K. I have fired thousands and thousands of rounds of corrosive 7,92x57 and 7,62x54R and 7,62x25 with no ill effects using that as my cleaner. Unfortunately MPro7 seems to have gone full black-rifle-tacticool and can't even be troubled to discuss corrosive ammo cleaning on their packaging or website anymore.

I'm almost out and it will be a sad day when the last bottle runs dry.

Before you take it out the first time, I would disassemble the bolt and clean the components. Sometimes you'll find cosmoline or other crap in there, and it's nice to get it clean. Semi-auto rifles . . . those concern me a bit more. You can still clean them, but it's a bit more of a PITA.

Thanks for all the insights. I just ordered a 900 round can of Yugo 8mm mauser ammo (corrosive)

I haven't had a chance yet to break down the rifle and clean out all the cosmoline but it will be done before range time.

NEGATIVE
I scrape it off, purify it and apply a dab behind each ear.

It's a man's perfume.