It appears that this Remington BDL .30-06 is just one of those rifles that is going to collect a bunch of copper in the bore every time I shoot and there is no way getting around it. I fired about 30 rounds at the range yesterday and then started cleaning it when i returned home. I started by running two wet patches with Hoppes 9 and let it sit for a while. Patch came out deep blue. i then used the homemade concoction of 2 parts 10% Janitorial ammonia and 1 part liquid dishwashing detergent. I used Dawn rather than the Ivory liquid. Let the rifle sit for about an hour ran a patch through and it was royal blue. I ran several patches and they started coming out white. Put some more Hoppes through and it came out clean so the ammonia really gets the copper out. It appears this will become standard procedure after every shoot with the '06. I guess that next I will mix up a container of Ed's Red. There was a little copper in the .300 WM bore, but the ammonia took care of it too. I can let the .300 rest for a month or so since I finally settled on a very accurate load for elk hunting.