A while back I posted a thread concerning the best products to prevent rust and corrosion in black powder arms during stoage and in the field.
Based on the responses I got, I took many of the suggestions and gave them a try. Some didn't work out too well for a variety of reasons from losing the predicabilty of first, cold and clean, first shot accuracy and dependability, to flat out not doing what I was trying to find. ALL were appreciated and taken seriously. Thanks to everyone who offered help.
Two products, readily available, were very good at stopping bore corrosion, and the one I finally settled on was simply amazing in it's ability to prevent rust during long term storage, in between shooting time short term storage, and maintaining first shot accuracy not only in muzzleloaders, but in modern cartridge guns as well.
turned out to be versatile in a variety of ways, from stopping rust anywhere I tried it, to the ability to be applied as a patched ball lube. The problem with this very old concoction was NOT in it's performance at all. It was the "fragrance" that irrated both my sinus' and throat. Once dry, it has no odor.
Bichwood Casey's Barricade
for me is the overall winner. You clean as you always would, dry the bore completely, then run a very lightly wet patch with the Barricade through the bore, use the same dampened cleaning patch a second time, and give it time to dry and it's complete. When you are ready to go to the range, or into the field to hunt, you're set. No reason to "remove" the Barricade, it does not alter the POI at all, unless you went overboard with the dampened patch, and even then, no more than MOA on the fouling round.
The final test was yesterday. I got my first groundhog of the year with my 17 HMR at 120 yds, not super long range, but for the first shot of the year out of the rifle, and straight from the safe to the field with not so much as a patch pushed through the bore, that first cold, clean, shot impacted the base of the neck EXACTLY where it should have. It did the same thing in the flintlock at the rifle range a number of times also.
I'm posting these results to say thank you to all those who offered up their help.