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I had already put 100 rounds through it on a vice.

JFettig wrote:Its not illegal to build a gun in USA if you can own one.

I build guns and that one is kind of terrifying. Your bolt is way too light for 9mm

The bolt weight is 1lb 10 ounces

Here is a 9mm auto printed with the Orion.

https://youtu.be/WIeDvHrrMn0

Thanks for the help!

I have had my orion for almost a year now. The first one I received Had problems with the hotend not reaching target temp. The one I have now developed the same problem after about two months. It runs about 5 degrees below target temp. With the layer fan running it runs about 15 degrees below target ...