They have improved considerably over the past 5 years and are more than viable for an extended use drop gun than ever before.
All the better if you can use a sintering 3D printer and then mill the final dimensions to operational spec and choose a design that is less straining on the frame/receiver.
If you are talking about machining from a billet, that is a serious dedication of time, energy, and finances. It is one thing if you learn to mill for sustainability and self-reliance, a whole 'nother thing if you are that motivated to make guns without the man knowing. You still would be buying a barrel if you can’t drop enough for the setup to make one.
They have improved considerably over the past 5 years and are more than viable for an extended use drop gun than ever before.
All the better if you can use a sintering 3D printer and then mill the final dimensions to operational spec and choose a design that is less straining on the frame/receiver.
If you are talking about machining from a billet, that is a serious dedication of time, energy, and finances. It is one thing if you learn to mill for sustainability and self-reliance, a whole 'nother thing if you are that motivated to make guns without the man knowing. You still would be buying a barrel if you can’t drop enough for the setup to make one.
I mean sure but a piece of pipe and a shotgun shell will do the trick
https://archive.org/details/combatsurvivalweaponsimprovisedkurtsaxonhowtobuildthefourwindsshotgun