[The KG9 Kid]

I'd steer clear of mismatched numbers between a Mosin bolt and rifle. That goes double for anyone shooting one near you.

Probably best to keep an arsenal refinished Mosin rifle intact and complete.

[dynachrome]

If you are unsure of headspace on a mosin bolt, these guys sell “coin” style gauges. I have a set and they work well. They also have 8mm Lebel, .303 british and 8x56r steyr gauges:

http://www.okiegauges.com/