Where's the PSA chf nitride barrel from?

[BrigandTwoFour]

I thought you couldn't nitride a CHF barrel because the heat from the bath will stress relive the barrel and warp the rifling.

No, that applies more towards stainless barrels which have lower stress relief temps. It can still be done so long as the people doing it have a strong grasp on what they are doing.

[JC5188]

At minimum Remington / Freedom Group also has its own CHF machine (or several?). I'm going to speculate that FN and Ruger might own more than one each. That's just in the USA, plenty of overseas companies have them, though probably not relevant to PSA barrels. There may be others in the USA too. They are expensive, but not THAT expensive when compared to other production-scale machinery, like really good CAM machining equipment.

LWRC I believe also.


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[ODgreenpizza]

I would think the forging process would beat any residual stresses out of the barrel blank. Either that or the blanks are stress relieved prior to forging.

[JG007]

Doesn't psa also sell chf ss barrels?

[Hkbeltfed]

Doesn't psa also sell chf ss barrels?

Yes, they do.

[10MMGary]

Doesn't psa also sell chf ss barrels?

They sure do and have a 20 inch SS barreled upper for sale as I type.

[MegademiC]

I would think the forging process would beat any residual stresses out of the barrel blank. Either that or the blanks are stress relieved prior to forging.

Doesn't forging introduce stresses into the barrel?
I always thought working put stresses in and heat relieved them.

[stankyhollywood]

Maybe a typo but im sure fn makes all chf barrels for psa

[Iraqgunz]

Please read more, and post less. The answer was provided.

Maybe a typo but im sure fn makes all chf barrels for psa

[ODgreenpizza]

Doesn't forging introduce stresses into the barrel?
I always thought working put stresses in and heat relieved them.

It's all about getting uniform and symmetrical grain structure orientation in the part. This can be done by subjecting the part to a precise time and temperature controlled heat up and cool down cycle. In the case of hammer forged barrels I suspect the brute force of the hammer forge coupled with the heat generated by the hammer forging process is able to achieve the ideal grain structure for a stress free barrel.