The idea behind the project was for a 'modular' 37mm round. Threaded bases and projectiles could be reloaded in large quantities, while only requiring one casing for a quick, mess-free, field reloading. Threaded bases are surprisingly strong, perfect for black powder lift charges (even smokeless :P). This is a remix on AWCY's MILC 37mm smokeless round, combined with older AWCY 37mm tech. This is a black powder only version. It is compatible with older AWCY threaded bases, and MILC projectiles with 1:48 polygonal rifling. LBRY Tags: 3d printed; 37mm; launcer; guns; printing