I was thinking about making a 10 mm magnum revolver out of my dan wesson 357 super mag that's a 357 maxium .I have an extra barrel or could get one made and a cylinder for 10 mm magnum to shoot 10 mm mag 10 mm and 40 sw .I could do this I think because of the easy change barrel .This would not ruin the value of the barrel .It weighs 4 pounds so it could handle the recoil .I looked up Gary Reeder but he's taking no more pistols for work .I just think this would be a cool pistol .The other choice would be a 10 mm super red hawk rechambered to 10 mm magnum .I think my dam wesson would be super accurate .This should be an easy conversion .You can make 10 mm mag brass from 6.8 spc brass just learned that too .