Beautiful rifle Cadet!! How long before we get some test results? Please keep us informed. I have just ordered some moulds from Accurate Moulds in the US not 1/2 hour ago. He has a fabulous list and will make any diameter and weight that you want.
I will let you know what they are like when they arrive. I ordered 2 different moulds for my 500 Nitro and one for my 16bore SxS rifle.
LesLeeSpeed