Thanks for the help and suggestions.
Oneoldsap - How difficult is it to take down a 760 and pull the barrel? I've got a flexible chamber cleaning tool that I could disconnect from the screwdriver handle and chuck to a drill. Probably would be easier than a complete takedown. What solvent do you use for scrubbing the chamber?
kk alaska - I haven't fired any factories through it, but I haven't had any primers extrude on firing with my handloads.
Thanks again,
JW