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Chamber Erosion Gauge

Discussion of tools and equipment for gunsmithing and refinishing of Mosin Nagant Rifles
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Chamber Erosion Gauge

Postby Grimstod » Fri Feb 08, 2013 4:39 pm

Has anyone ever seen one of these before?
How does it work?

http://www.ebay.com/itm/Finnish-Army-Mo ... 56528eace7
Image
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Re: Chamber Erosion Gauge

Postby DevilDog » Fri Feb 08, 2013 6:16 pm

That is very cool. Mosin Procto guage :lol:
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Re: Chamber Erosion Gauge

Postby Shepard » Sat Feb 09, 2013 2:58 am

Grimstod wrote:Has anyone ever seen one of these before?
How does it work?

http://www.ebay.com/itm/Finnish-Army-Mo ... 56528eace7
Image



It works like a go --- no-go gauge. The first 2-3 inches of the bore takes the most fire from the combustion of the powder. It removes metal from the bore --- the fire burns it out to the point you have a funnel at the beginning of the bore -- you check it with a bore erosion gauge -- if it slides in -- no good -- if it doesn't -- good.
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