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Not my opinion, just my experience.
I seasoned the bore of my T/C .45 Cherokee with Bore Butter as directed - clean the bore thoroughly, then dry & warm the bbl until it was almost too hot to handle, then swap the bore with the BB - which I did when BB was introduced in the 1970's (?).
Since then, every time after I was finished shooting & hunting with the treated Cherokee, I swab out the fouling with a few patches wetted with Moose Milk (T/C #13 bore cleaner) until the patches come out fairly (not perfectly) clean.
After running a few dry pathes through the bore, I make a pass with a patch loaded with BB.
I still own/use the rifle today - the bbl is rust & buildup free, and shoots just as accurately as the day I bought it, long ago.
The method has worked so well for me, over the years, that I treat all my hammerguns with the same.
That Cherokee is pictured below, along with it's .45 Seneca brother.
I never did the treatment with the 1 or 2 inlines I played with for a short time.
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