If you have the facilities to media blast it, I'd just pull the barrel and head off, and do it. That allows you to be certain you've gotten rid of any residual media particles, when you do the post-blast clean. Much quicker.
After all, doing that would only cost you a barrel gasket set, and those are cheap.
Cheers, Gadge
"ODK Mods can explain it to you, but they can't understand it for you..."
"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."
