i use an 18" flat jawed reed corp wrench on the the plug, while the barrel is held in a large bench vise 'tween extruded aluminum jaw padding. i also use the rice wrench and vise octo pads, very good stuff. i'll always want to pull a plug (and liner) that i don't know has been anti-seize lubed - that's mandatory for me. some, if not most, of the commercial trad ml's will not allow their plugs to be pulled - ever, so beware of that krap.
oooo, look what i found in the patent breech and chamber of a brand new, unused investarms flinter ml barrel ....
18" reed corp wrench ...