High carbon steel would rust, making it a poor choice regardless of how fine a finish it can produce.
I think there are plenty of shops making brass barrels already.... Palmer's Pursuit and Hammerhead come to mind... It's allegedly the best for barrel linings and inserts, being a low friction material and taking a fine hone. Stainless steel comes in 2nd, I believe.
But titanium... I'd like to hear a machinist chime in here and give us an opinion on titanium's mythical properties. Would be pricey, but it sounds like it has potential. A barrel of solid titanium might be as light as carbon fibre, but as durable as anything else (not that I think carbon fiber isn't durable enough).
My feedback: MCB
Originally Posted by The Flounder
We don't do easy here! Here we do different and not done before!
Last edited by freedummy; 12-17-2012 at 10:59 AM.