NP - was just wondering. Some guys do it because they don't want any fouling buildup in the breech area that doesn't get cleaned when loading the next shot.

I tested the accuracy between wiping between shots and not wiping, many years ago in a couple different guns and found much closer shot to shot velocity spreads and better accuracy if I didn't wipe. Both the .58 and .69 gave me between 4 and 8 fps extreme spreads (10 shot strings) on speed when shot 'dirty', as opposed to 17 to 24fps difference if wiped betweens shots. This was all with spit for lube and heavy denim for patches. Ticking is difficult to find around her, but not denim in the 10 and 12 ounce weight, which is what I use in all my guns.
We usually run 40 to 85 shots on the trail every Sunday, and noone wipes their bores. The last shot actually loads as easily as the first. In the rifles, we all run balls .005" under the bore size,w ith a .020" to .025" denim patch. Lubricant runs from spit, to winter windshield-washer fluid with a bit of liquid soap to hoppe's 9 Plus, which is a good patch lube for the winter, just as is the WW fluid and soap. The addition of soap is merely to slow the evapouration of the fluid and to ad a bit of 'slippery'. Yesterday, in the .32 Tenn. rifle, I used trackofthewolf's mink oil and it loaded easily all day. Some rifles foul a bit on mink oil with heavy charges. All these 'wet' lubes shoot and load 'cleanly'.