Yeah, the 1919 has been converted to semi auto. I could not afford a full auto. A guy here in Rapid City did the conversion for me. It is in original 30-06 caliber. I guess they do have a crank you can get for these that will fire up to about 450 rounds per minute. You can see them work on you Tube. I never did investigate them cause i have other things to do other than reload '06 rounds 24-7.