Greg B

Here're some neat links that get to the point with additional commentary by pros.

Essay on Cryo and metals

http://www.300below.com/site/cuttingtool.html

Cryogenics to gunsmithing

http://www.nfa.ca/cfj-archive/miscel...e-barrels.html

http://www.300below.com/site/shotgunsports.html

Companies

http://www.cryointegrity.com/methods.html

Message board:

http://www.eng-tips.com/viewthread.c...=112765&page=1