Try mineral oil. I never did tape the barrel of my gun but it worked on getting the residue off of my wooden stock. I don't know why I bothered taping it in the first place, the turkeys never minded my plain old brown stock...
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Im a turkey hunting addict
Bow Oneida Eagle Tomcat
Easton Arrows
And the most reliable release Fingers
Gun Mossberg 500 & T/C Hawken
Fire and Iced custom calls Field pro staff
Mineral Oil or Petroleum Jelly takes any oil, grease and grime off hands too.
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Eric
If it's bleeding or on fire I can usually fix it; other than that we might be in trouble! IAFF Local 4416
Lt/Medic E73 "Keeping an eye on the South-side"
Fire-N-Iced Pro Staff Director