Just wanted to say hello. Just getting into forums to try to share ideas and stories about guns and the like. Looks like a great place to start. I've been a machinist for the last 19 1/2 years and have made quite a few custom parts and a few guns. I've made the Gunmetal designs "Big 50" and more recently i made a left and a right handed semi-auto 50 BMG from the Hyperdel systems prints. Still working on the gas block and others to get the semi-auto function working right, but they both shoot. Anybody here make any 50 BMG's or they're own custom guns?