Brushless cleaning
Frank, I read your posts yesterday and was shaking my head a bit - brushless cleaning on a centerfire? Can't be...
This evening, I put two rifles in the rack to clean from today's matches, a 6XC and a 6BR, each has about 1500 rounds fired and they don't foul much, but a Highpower match (60 to 80 rounds) will always lay some copper and carbon in there, as you know. It occured to me that this was a good moment to try your method, nothing to lose, after all; if it doesn't look clean through the borescope, I'll just clean more with brushes.
I cleaned both rifles the same way, two wet patches one way followed by a patch of IOSSO back and forth 5 times (never exiting the barrel) with extra short-stroking in the throat and last 4" of the barrel, flush with two or three wet patches. Repeated the process, then dried. I put the borescope into the 6XC first, expecting to see a not too clean barrel - wrong! It was perfect, as good as my normal cleaning. The 6BR was just as good.
I'm about 90% sold on your method, tomorrow I'm shooting the 30-06 with a heavy load of 4350 and 190's (Bartlein 5R, 30"). Once I give that one a cleaning, I suspect I'll be 100% convinced and the brushes won't see much use anymore. Thanks for the tip!
German Salazar