migkillertwo
Member
- Joined
- May 29, 2010
- Messages
- 279
I imagine that they would be cheaper, I mean the process was invented in order to make barrels cheaper to build.
Hammer frorged is the cheapest way to make a rifle barrel, and the worst. But the term has been used like the "Hammer of Thor" to impress wally world Wannabees. So when you've bated a sucker, make him pay.
.Gotta ask why it's the worst. Button rifled barrels are inherently less concentric because they have to be drilled end to end. Only the best actually get them on axis, as said, some are so far off a silencer cannot be used on them - they'd get shot off. Barrels that don't have the hole down the middle will heat up on one side more than the other and bend as they warm up. MOA goes out the window.
Button rifling drags a carbide slug through the bore as it gets turned, ripping the material out in micro chunks and leaving a rough bore that has to be either lapped or cleaned a lot to prevent brass or lead buildup.
Precision cut rifling, one groove at a time, done by the best, is highly accurate, and expensive.
That leaves hammerforged, which literally compresses the metal onto a mandrel which already has the rifling on it - polished and without machine marks - controlled by CNC machinery and all the pressure it needs to not only create the shape needed internally and externally, but also removing the grain structure of the original stock and creating a new pattern that conforms to the shape.
Forging is an inherently stronger part with less dead weight and imperfections, which is why connecting rods, cranks for supercharged engines, and other high stress parts are usually forged. So are AR receivers and most stock aluminum wheels. Not cast, not machined billet - forged.
But some people don't seem to have a clue about machine processes, so they just throw insults and class warfare into the discussion when they can't argue the point with facts.
Done
Button rifling drags a carbide slug through the bore as it gets turned, ripping the material out in micro chunks and leaving a rough bore that has to be either lapped or cleaned a lot to prevent brass or lead buildup.