As the old tv show said, " That's what I'm talking about!"  What diameter did you patch to?  I have some patched to .404 that slide into my barrel with thumb pressure behind a plugged case that I am going to try breech seated with a duplex load of Re-7 and Swiss 1 1/2 next time out to the range.  If they work breech seated I am going to try fixed but barely seated just enough so the bullet won't fall out in my shirt pocket.  Only eight more months to hunting season, I better get hot!     Tom