I still doin't know if I will do this but I have found a frind at my yacht club that can make the monoblock and said that he would help me because he thinks it would be fun. So I have Ellis book and I understand how he makes his but he uses a small shim at the braech end of the barrel CAN ONE bore it out so as not to have to use this shim if I do this I will try to go with a 12 bore barrel if I can find one that will work how I want. I have also though about just making it in 10 bore but that is even harder to find then a 12 bore made with the right steel and whith the right slow twist rifiling. If I can't get those I think I would like to go with a 577 23/4 B.P.E. using 650 gr. and at 1650 to 1700 fps loads. The action I would use is my 10 bore 31/2 inch made in Spain.

Tom N