Firing 3D-printed 9mm bullets!

Attention: I do know that I didn't wear eye-protection, and you do not have to point it out. We consider these rounds very low risk as they are light and have very small powder charges. I appreciate your concern, but it was pointed out a few moments after the video first was posted. [Warning - loud volume] One of my friends owns a 3D-printer and prints all sorts of crazy things with it. A while ago, we were discussing different gun related parts that could be printed, such as grips. After a while we had the bright idea of printing actual bullets for reloading. I can't remember seeing 3D-printed projectiles being fired through a rifled barrel yet, so this might a "proof of concept" video. As the video shows, the tests were successful. All bullets fired and the Glock didn't blow up. When it comes to accuracy, the 1gr loads showed some potential, while the 3.8gr loads seemed to shoot high and left. Hopefully, we'll get around to do some medium testing sometime soon. We do not have access to ballistics gel, but we'll figure something out. Bullet specs: Material: PLA (prolylactic acid, biodegradeable) Extruder temp: 195 C Bed temp: 70 C Layer height: 0.2mm Nozzle diameter: 0.4mm Bullet weight: 13gr