17 Rim Fire

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Octopus

Guest
Back a few (maybe several) years ago there was an article in Precision Shooting about a special 22 Long Rifle barrel that had a chamber that tapered down to 17.

The rifle fired a 22 LR which swaged down to 17 as it entered the barrel.

While I remember the article I can not seem to find a copy of the issue it was in.

Can any of you help me find this article?

I am thinking this may be a fun project.

Octopus
 
Wow, I would think that would make a bit of pressure and an extremely long bullet.
 
17 Rimfire and 22 rimfire are two different cartridges. Each require a different barrel chambered specifically for that cartridge. Go to Rimfire Central, they have a section devoted to the 17 cal. It's not a widely used cartridge in benchrest as we know it.
 
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Octopus said:
Back a few (maybe several) years ago there was an article in Precision Shooting about a special 22 Long Rifle barrel that had a chamber that tapered down to 17.

The rifle fired a 22 LR which swaged down to 17 as it entered the barrel.

While I remember the article I can not seem to find a copy of the issue it was in.

Can any of you help me find this article?

I am thinking this may be a fun project.

Octopus
Click to expand...

Give Randy at CPC (Connecticut Precision Chambering) a call.
http://www.ct-precision.com/

That was the 22 Swager (Modeled after the 22 Extruder that a man in Australia came up with in the '70s). Randy was making barrels for 10/22s in that flavor as well as several bolt guns. Yes the bullet does come out quite long.
 
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Ol' Arthur was ahead of his time. He did the 17HMR first, as well as the 17 MachII - or their equivalent. And he did it back in the '70s. You'd be hard pressed to find a way to get 3400fps from a 17HMR today.
 
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