Hi Timberlake, sorry it has taken me so long to reply to your inquiry, CHRISTmas shopping ya know.
I have experimented with paper thicknesses from .0010 to .0030 and found that if I keep the patch to bore dia. and less than grove dia. I am able to shoot that many rounds without running a cleaning patch down the bore. I am shooting these in a C.Sharps, 45-110, using either a 420 gr or 550 gr bullet cast 28-1 lead -tin, with a cast dia. of .446. This is backed by 92 grs. of Goex 2fg, a milk carton wad, compressed then to allow the edge of the patch to just contact the lands. I then use a grease cookie made up of beeswax, vaseline, and just a small amount of olive oil. Instead of a roll crimp, I just use the sizing die to give a taper crimp and therefore don't damage the patch.
My blow tube is full length of the chamber so as not to get the chamber wet, and consistantly give 4 good slow blows. I haven't tried to go beyond 20 rounds without at least one patch, but I expect that I could.
I tried some .0030 100% cotton paper, but that made the finished patched bullet .4615 dia. When shooting these, after the first bullet was fired, I noticed difficulty chambering the next round. I ran a cleaning patch down the barrel, and found a small thin ring of paper had been just at the end of the chamber (or start of the bore). This dia. did this every time. There was no effect on accuracy, but the barrel had to have a cotton patch run through it after every shot. I don't want this when I go to a match, or practice either one.
Bufffalo Arms in Idaho has the 100% .0010 cotton patch paper. they advertise it as .0020, but with 4 different micrometers that I have, it always measures .0010.
The 45-110 is fairly new to me so I am still working up loads for it. But it seems like it will be accurate when I get done load developement.
If it is as accurate as either my Pedersoli 1874 sharps or Browning BPCR, both in 45-70, I will be happy. Merry CHRISTmas, Omaha