Well guys......

I was thinking of a 10g starter gun, weighing about 4kg/9lbs by itself, after the barrel work what would it weigh? I guess 6.5kg/14lbs no?

Would it be necessary to step up to 8ga?!! Now I see why nobody has done it........

I am only trying to find out if its possible or not.........seems nobody ever even asked the question!!

The Heym at 35000-40000$ is the cheapest double .600 it seems.

Ben