Very interesting ideas, here. Can you, or has anybody tried to, do this with a product like bore butter?
BB is the WORST in cccccccold temps! Every Wintah (that's 'Winter' for you southerners ... ) I run the muzzleloading primitive biathlons on wood snowshoes, as held in NH, NY & VT. Temps in the VT shoots have been just above zero to 'warmer'.
One race, after my run was over, I volunteered to officiate/score the last shooting station (3 targets) and after witnessing many 'stuck' loads & broken ramrods whilst out on the race course, I brought my steel-cored ramrod and mink oil from TOW with me to that shooting station.
It was 17-degrees out and in less than 4-hours, I
witnessed 8 broken ramrods, 7 from using Bore Butter and 1 from spit patching. I also pulled numerous loads or re-applied my mink oil so the shooters could continue participating & firing, of course taking that shot as a 'miss' ...
We have turned many a shooter and/or hunter on to Track's mink oil, as a muzzleloading patch lube, at these shoots! I've yet to see anything out perform it!