As above. Veteran of cleaning smoothbores (warm water and soap, Ballistol, Hoppes, jag, patches) but now have a .54 cal rifled kit inbound.
How do you ensure there is no corrosive powder residue left in the rifling?
With the smoothbore, even after the warm water and soap flush, the first couple patches invariably have black on them that quickly cleans up but I can imagine residue remaining in the lands and grooves. .54 jag ain’t gonna do it? .50 cal (so it doesn’t get stuck) bore brush? Some other magic trick?
I live in an apartment so No yard and No garden hose available.
So, I rely on 'cleaner fluids' mostly.
First, I try to fire my last few rounds using Shenandoah Valley lube/cleaner. Then swab it down with a soaked patch of Shenandoah before leaving the range.
Next, once home I fill a small Tupperware tube of room temp water (I stopped using soap). But I begin with a couple patches of bore cleaner (don't matter which one).
Follow this with a few patches of water, run either a nylon brush or Tow down the barrel followed by a coue dry patches.
Then I run as many patches wet with Butch's Bore Cleaner as needed, followed by dry patch, followed by alchohol patch, followed by dry patches, then Oil and DONE.
Now on my two with a vent liner, I pull those and get into the breach area with Q-Tips (usually takes 4 or 5).
As for patches, I find cotton flannel to do far better and quicker the cut up T-shirts like I used to use, $10 at JoAnn's gets me about $60+ of store bought patches.
In the end I use on average 10-15 patches, 4-5 Q-tips - no fuss, no mess, all done on the kitchen table.
Oh, and I use....Balistol
often when cleaning (not for storage) but never Bore Butter (don't own none, don't need none).