the secret is to season the bore properly!
What a bunch of total BS. You will NEVER season a ML barrel. Its not a cast iron skillet in a 400F oven for extended periods of time.
I have never had to lube sabots...EVER and i have thousands of them. Literally over 3k sabots sitting in my supplies right now. The right way is choose the sabot that fits your bore correctly. Use good quality mineral based oil or synthetic bore oil and make sure to swab them out well before firing your first shot. Bore Bummer is garbage compared to a quality synthetic or even Ballistol. I have inlines costing from $250ish to worth a couple grand and i would not use that junk in any of them. My conicals come lubed already from BullShop with Dan's NASA lube and for some i use a modified version of the recipe Idaho Lewis came up with.
If you want to load over and over without the high cost of Blackhorn 209, try BlackMZ.....Now its sold by Shooters World. Alliant dropped it and SW picked it up from American Pioneer Powder. Far less corrosive than Pyro, just as easy to ignite and cleans up easy. It just sucks in the FPS department but so does Pyro.
https://www.grafs.com/retail/catalog...roductId/83678
https://www.grafs.com/retail/catalog...roductId/83680
https://www.midsouthshooterssupply.c...shooters-world
Anything else besides BH209 and SW Black will need some swabbing between shots. Its just the way it is with inlines and 209 ignition.