I too initially thought it'd be the usual underpowered .22LR.
As the 1st paragraph of the Forbes article states: The Liberator fires the .380ACP, out of a pure 100% 3D-printed polymer barrel!!!
Before “three” arrives, a shot reverberates across the overcast central Texas landscape. A tall, sandy blond engineer named John has just pulled a twenty-foot length of yellow string tied to a trigger, which has successfully fired the world’s first entirely 3D-printed gun for the very first time, rocketing a .380 caliber bullet into a berm of dirt and prairie brush.
Predictions in due Time...
"Let it not be said that no one cared, that no one objected once it's realized that our liberties and wealth are in jeopardy." - Dr. Ronald Ernest Paul
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