Keep in mind, I use a heavy brass range rod for loading at the range and in the field (collapsable rod for the field). I use the feeble factory rod for a backup to the heavy duty range rod.
Sabot shooting:
From a bone dry clean bore with a lubed breech plug installed. I lightly natural lube a patch and run in the bore down and up (This is to control any potential for flash rust). Then a clean patch down and up.
Then load powder and sabot'ed projectile.
Shoot.
Then spit patch down and up, flip patch and do again.
Then 50/50% 99%/isopropyl alcohol & windshield washer fluid(Thanks Cayugad
, I was using only alcohol for yearswith great results but mixed with the washer fluid does seem to clean the primer fouling a littlebetter)patch down and up, flip and do again.
Then a dry patch down and up, flip and do again.
Then load powder & sabot, and fire when ready.
Repeat the same procedure for every shot withevery ML I have when shooting sabot'ed projectiles.
Best and most consistant accuracy and performance. Loading is the easiest as well when cleaning in-between each shot as I have described.
In the event that a quick followup is required (although I have yet to need one), I carry a speedloader with a worked up load, wad and conical which will load easily and quickly.
Never (ever) have I pulled a breech plug or nipple to clean after every shot. You may need to "pick" the flute in the breech plug depending on how fouling a powder you shoot. After 7-10 shots, I will "loosen" and then re"snug" the breech plug to prevent seizure.
My .0002