Here’s a cool story about a homemade Gatling Gun chambered for the finicky .22LR rimfire cartridge. Small tolerances, blueprints that were completely wrong, and enrollment in advanced gunsmithing classes helped bring this project to completion.

Hower started out by purchasing blueprints for the Gatling gun. Once he started to machine and manufacture this very ambitious project, he quickly realized the expensive plans he bought were simply wrong. Not to be stifled, Ken used his mechanical intuition and plenty of internet research to draw up his own set of plans. While working the kinks out, Hower would fabricate a new part and when it did not work, he machined another based on the previous failure.

Source: Homemade! The Hower .22 LR Gatling Gun