Just relating what the Garand Collector's Assoc. and the CMP have published. Y'all ought to look into it.
Not doubting your quote at all, just have a different perspective than the authors of the article. No bore gauge needed to see the muzzle wear on every Blue Sky M1 I ever saw and there could only be one cause. Admittedly these rifles are prime example of extreme abuse w/about the worst cleaning rods on earth.
As taliv and Walkalong, my cleaning regimen was developed over a lot of years of competitive shooting, but I use same on .22 RF rifles, factory hunting rifles as well as target rifles. Not sayin' it's for everyone, I just try to coax the most accuracy and extend barrel life out of each.
Someone mentioned not being able to carry one piece cleaning rods into the field. Ever since my hunting partner let his rifle slip off his sticks, jamming muzzle in the sand, I carry a long .22 solid coated rod in a capped piece of 1/2" PVC pipe behind the back seat of my pickup. Also made and carry a couple of really handy (especially for .22 RF) pull through by cutting a 10" (for pistols) & a 30" piece of string trimmer line sharp on one end then pressing opposite end on a flat surface after heating w/a match to produce a head. You can then push a proper size patch onto sharp end and pull through bore carefully and avoid any possibility of barrel wear. Both fit nicely, along w/assorted patches in a shoe polish or pellet can.The nylon is stiff enough to push through sand or snow packed in a .243 barrel.
Regards,
hps