I have been using the same 1/2 ounce tube of anti seize for 20 years. I only use a smidge. To remove the plug I always start brushing the barrel with soapy water first. That breaks most of the black powder fouling holding the plug in place. Same said for the vent liner in a flintlock, still very hard to remove with anti seize unless you soak in soapy water first. Then it is a breeze.
