For those interested a update on one of the things that might come up with BP/Duplex loads. Cleaning after shooting was done in the more traditional way by passing patches through the barrel. I use a tap hot water mixed with a little Oxy clean dissolved in it to wash the brass so I just wet a patch and put it through the bore then follow up with a second wet patch and a dry patch dry out. I let it sit for a while then did a Hoppies 9 patch and set the rifle in the corner checking it every day since cleaning and no rust of any kind, I will run a clean white patch through it and see what residue I get. It seems to work as well as pouring hot water down the barrel and a swab out. I'm going to change to a larger capacity case (longer) than the initial reformed cases and see what I get by the larger charges. The loads I shot before shot dead on at 25 yards which for me was a pleasant surprise, if those work out I might run them over the crony and see what they are actually doing.
Bud