Hello Ed. Take a look at this guys bullets. It is in Germany and he makes Copper alloy bullets with drive bands. Only the drive bands go into the rifling. Wouldn't that be beneficial for pressure and accuracy?? Maybe he will take part in research for the "Ultimate Bigbore"!! Anyway, AWESOME guns you have. I have a Greener 14 1/2 Gauge Police Gun on a Martini action and reamed it out for a 12 Gauge chamber long throat. Shoots ok no excess pressure, the barrel diameter is on the LOW end for 12 Gauge. Here is the URL for the Bullets: http://www.lima-wiederladetechnik.de/index.html The site is German and English.
