Cleaning 45-70 Cartridge Tube

[Oldguy44]

Does anyone have any tips on getting a 45-70 cartridge tube (not the plunger) squeaky clean without taking all day and using 200 patches? Mine got powder fouled on a recent desert outing. I used a bore brush and a ton of Hoppe's #9 soaked patches and there is still powder residue in there which makes the plunger stiff to insert and remove. I also polished the plunger with 0000 steel wool. So it's better but not 100% as delivered. I was thinking maybe a shotgun swab might be more effective.
Any help out there? Thanks

[BigAl52]

I use a brush with a large patch in the tube on the gun and in the tube with the plunger. I've never had to use that many patches.

[JEBar]

I've used an old 410 Bore Gun Mop Brush ==> https://www.amazon.com/Tipton-Bore-Brus ... th=1&psc=1

[Oldguy44]

Thanks guys, I bought a 16 Ga shotgun brush and a mop that should take care of this in good order. I also picked up 500 3 x 3 patches that should work much better than what I had been using.

[Grunt67]

I just cut up an old T-shirt. It works.