So what would it take to acquire, install, and learn to use the equipment you'd need to machine a ready-to-use barrel from a blank? I have no idea, it never occurred to me that anyone would ever do that. Seems to me it would be a lot more practical to buy a new riffle or a new barrelled action.
Huge pain in the ass to maintain concentricity (Assuming the blank is good to go on that in the first place) for anything that has a tapering barrel, instead of a straight cylindrical profile over most of its length like an AR, or a stepped cylindrical profile like a military issue Mauser barrel...you can of course buy commercially-profiled barrels, they cost two or three hundred dollars more than a cylindrical blank unless you happen to stumble on a take-off or production overrun in the bore you want.
And if you buy a new barrel, how do you unscrew the old barrel and screw in the new one? You sure can't use your toolbox vise grips. I don't know how you do it, but I'd never attempt it on one of my riffles.
Those bastards are in there tight, especially in an old military action where they haven't been touched in 80 years. Not so bad in an AR where they aren't threaded but held in by a castle nut, but still requiring a special spanner and considerable force. For a steel rifle like a Mauser, Springfield, or Enfield action it takes some special set-up, tools, and about a four-foot cheater bar.
If you buy a new barrel from Douglas or Shilen or someone, and have it installed on your action by a gunsmith, what would the total cost be?
About half what that idiot is planning to spend for the gun total...and that's not counting any work beyond just installing the barrel and headspacing it, like work on the feed ramp, magazine well, bolt face, or extractor. If you have a connection at a gunsmith school, you can save some money on that, of course you are taking a little bit of a chance - even though the instructors normally won't let an unsafe piece of student work go back to you, they might hose up a $300 barrel.
There's no DUmpmonkey that would or could do any of that, and DUmmy Scott.K is a very unskilled, obvious troll, who knows less about firearms than Nancy Pelosi.
DUmmies lie...DUmmies always lie.