Old And New Ways Of Rifling A Barrel

The old way, by cutting the rifling grooves into the barrel:

One of the new ways, by cold hammer forging the grooves in:

Frankly they are both frightening as hell!  The 2nd video isn’t specifically firearm related, but the process is similar.  I cringed every time that hammer came down and struck the object… that’s TONS of force per square inch.

To use a Workaholics reference… both processes are so tight butthole.

Thoughts?

Hat tip: Simon, Eric

7 COMMENTS

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David August 24, 2012 at 08:46 am

Hammer forged barrels are created in a much more civilized manner…. A barrel blank with a mandrel inserted is placed in a hammer forging machine and then magic happens. See link below.

http://www.youtube.com/watch?v=yCF2Gd_oCMM

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Firehand August 24, 2012 at 02:10 pm

Once saw some video of a rotary forge working a 155mm barrel; ‘impressive’ is an understatement

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SiGraybeard August 24, 2012 at 06:13 pm

Very cool. I’ve been kind of brainstorming ways to do this at home without a big expensive piece of equipment like a hammer forge.

I saw a video of how the Kentucky long rifles were made by hand, and two guys were working on a bench with some sort of mechanical device that didn’t really resemble the one in the first animation.

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Mr_Rich August 24, 2012 at 06:15 pm

I used to work at a forge shop, we didn’t do barrels but we did the pintle mount for a Ma Duece. Those prints were dated 1936.

The coffee on my desk had rings like in Jurassic park all day long.

Rich

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Jeff August 25, 2012 at 11:23 am

It might just be me, but the hammer in that video seemed like it was raping the barrel

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Jayson September 14, 2012 at 05:23 am

way tight butthole dood

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