These are fired (& so utterly inert & 100% safe) cases from a firearm using the 17 HMR ammunition (It stands for Hornady Magnum Rim-fire 0.17"), they are 1.150" long, 0.288" wide at the rim, 0.244" at the base tapering to 0.192 at the open end of the neck. They ae very popular with target & pest shooters, so they are easy to find.

OK, so what you ask?
Well they'll be absolutely free as they are discarded after use so your "contact" can just snarf them up off the ground for you!
They're darn near perfect size scaled to a 1/16 model as fired main gun rounds! They're even correctly fouled, stained & weathered! The bottleneck may not be perfect for some tanks, but hey fer cheap its not a bad deal.


