Originally Posted By bcd:
Originally Posted By evlblkwpnz:
- from Centurion Arms.....
Cold Hammer Forged Barrels
Hammer forging is a process in which a drilled and reamed blank has its rifled bore and chamber formed by swaging. During production of the barrel, the internal profile is formed by a series of opposing power hammers which concentrically “crush” the drilled blank around a precision-ground and hardened mandrel. This process yields an extremely uniform bore with a tough, consistent surface finish on the inside of the barrel. A proprietary honing operation along with a specially tapered section of rifling formed during the forging process ensures excellent accuracy. The forging process also work hardens the barrel steel resulting in a very durable and much longer lasting barrel.
When it comes to objective facts, statements made by people trying to sell stuff come pretty close to the bottom - but at least you posted something to support your position, so thank you. Most of the pro-CHF voters did not post.
would seem to be the main claim for hammer forging, but I have yet to see any actual testing to back it up. I'd love to see something like " 'X' hundred barrels were tested, button-rifled averaged 'x' thousand rounds before exceeding (spec), CHF averaged [1.5x, 2x, x + n, etc] before exceediing (spec)," but I don't think it's there. If it is, I sure can't find it. Without that, claims are just, well, claims
I was suprised to hear any claims about accuracy
at all, after decades of bolt-action rifle discussions along the lines of "(whoever, but esp. Ruger
) rifles are crap because they use cheap hammer-forged barrels, inaccurate, not suitable for tactical use . . ." etc. Who knows, maybe times have changed.
Or maybe it's "we hate XYZ this year, and they're crap because they're hammer-forged / we love ABC this year, and they're the best because they're hammer-forged !"
At any rate, I'm looking to buy several complete uppers this year to update some older stuff, and I'm still on the fence about this . . .