Cosmo removal

[ptmccain]

One problem area that is rather infamous for causing sticky bolt action in Mosins is the chamber, particularly in/around the lugs where the cosmo can get really gunked up and nearly harden through many years of storage.

I put the barrel, chamber end down, in a pot of boiling water and give it a good boil for 15 to 20 minutes, then follow that up by putting some very mild abrasive bore cleaner on a cleaning pad, wrap it around a 20 gauge on a short rod and use a power drill to really polish/clean the chamber.

Worked like a charm on a Mosin 91/30 that was giving me fits with bolt problems.

[ptmccain]

One problem area that is rather infamous for causing sticky bolt action in Mosins is the chamber, particularly in/around the lugs where the cosmo can get really gunked up and nearly harden through many years of storage.

I put the barrel, chamber end down, in a pot of boiling water and give it a good boil for 15 to 20 minutes, then follow that up by putting some very mild abrasive bore cleaner on a cleaning pad, wrap it around a 20 gauge brush on a short rod, put the rod in a power drill and work it back and forth in the chamber as much as I can to really polish it and get rid of the residual cosmo that can, and will, cause problems when you are shooting and it heats up.

Worked like a charm on a Mosin 91/30 that was giving me fits with bolt problems.

[0321jarhead]

The "Garbage Can" method works 24/7, 365, rain or shine. http://www.calguns.net/calgunforum/s...d.php?t=593582

[DennisCA]

Heat Gun?

Using a heat gun to boil it out what do I do and how do I do it properly

Like this?

[ptmccain]

Cool, that's precisely the tool I used to remove my cosmo, along with the rest of the house.

[DiogiDoc]

Agreed

Put the wood in a black plastic trash bag and let that sit in direct sunlight. Wipe off every once in a while..

I left my Mosin in the box it came in, in the trunk of my car, on a hot California day. It was probably 140 degrees in there. Spent my lunch hour and it all wiped right off like warm cooking oil. Didn't have to expose the wood to any water. Shot like a dream last weekend. I have the bruises on my shoulder to prove it.

[paul0660]

Cosmo will continue to wick out forever when the gun gets hot.

WW3 was going to be a smelly greasy affair.

[kris smith]

It smells bad but pisses people off when you clean it in the house

[paul0660]

It smells bad but pisses people off when you clean it in the house

I get more complaints about the regular unleaded and my Lucky Strikes.

[gasol1ne]

i use hair dryer the stocks, and boiling water for the metal bits.

[billmaykafer]

my M44 that came UPS yesterday seems to have grease instead of cosmoline like my other 2 M91-30's.

[billmaykafer]

dupe li cate

[DennisCA]

Cool, that's precisely the tool I used to remove my cosmo, along with the rest of the house.

Who says you have to use YOUR house?