It's a thought and the the barrel would not be hurt with a steady diet of black powder. I've shot my muzzle-breech-loader Pope with duplex loads but have never worked with it outside of those type rifles. Of course I would then have to make a PP mould which is about he only type I've made that worked well.

The good thing is there is not much I could hurt experimenting with this rifle.

A little bit more about accuracy, I have to have a goal to work for with a rifle. I have found that many good schuetzen type rifles can deliver 1/2MOA but it's a long road there. For as long as I've been at this the wind seems to be the one thing that always limits my shooting. That's why I try to shoot when the weather is good.

MP Sadly Deceased as of 2/17/2014