Huvius's idea of the cruciform patch (CROSS of 2 strips) is possibly do-able, however, you would likely need a false muzzle arrangement to properly align them and hold them while they fold into the muzzle.

Single wrap I have used, but it was a single wrap of masking tape. This worked in my bro's Sharps with only .0015" deep rifling. The gun shot jacketed bullets from 300gr. to 500gr. Hornadys beautifully with 100gr. black powder or smokeless but cast bullets were impossible to keep under about 6 to 8" at 100 yards with smokeless or black.

Switching to an undersized bullet, then patching the bullet up to bore size, solved the accuracy problems in Taylor's rifle. In that one, we found masking tape, one wrap was perfect, while in mine(Hoch bl.), a double wrap of .003" bond, was perfect. These under sized loads (bore dia - not groove dia) were only shot with black powder charges, as per Paul Mathews writings.

We both used lube cookies of 60:40 BW:Vaseline with a light smear of the same lube on the outside of the patch.

I could fire 10 shots, one after the other as fast as I could load and shoot, then with one dry patch, push all the accumulated fouling out the bore. No leading, no hard fouling.