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Ratchet Rifling

 
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  #1  
Old 05-27-2005, 02:20 PM
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Join Date: Dec 2004
Location: Nebraska
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Ratchet Rifling

What is it? I seen it on the Shilen website but they dont say to much about it. Does it have improved accuracy or velocity over conventional rifling? Thanks
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  #2  
Old 05-27-2005, 05:59 PM
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Join Date: Mar 2004
Location: New Mexico
Posts: 244
Re: Ratchet Rifling

check this out, it talks a bit about the ratchet system, canted system sounds much better.

http://www.6mmbr.com/BroughtonProfile.html
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  #3  
Old 03-31-2010, 01:17 PM
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Location: on the Southern Plains
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Re: Ratchet Rifling

They look to be pretty close to the same principal. The Shilen Ratchet Rifled are 4 groove and the Broughton 5C canted is 5 groove. Anyone out there have any personal feedback on either one?
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  #4  
Old 03-31-2010, 02:42 PM
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Join Date: Aug 2005
Location: Murray, Ky.
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Re: Ratchet Rifling

I'll be able to tell you something in about a week or two. I've got one coming from shilen in a .243 win 8 twist. I've heard on some other forums that some people were getting 100 fps more than other types of rifleing and reallygood accuracy as well. I hope they were right.


Will post back asap,

Nathan
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  #5  
Old 03-31-2010, 04:24 PM
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Join Date: Mar 2006
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Re: Ratchet Rifling

I built a 260AI on a savage with a shilen prefit RR and it was on par with average velocity of a normally rifled barrel.
It was extremely accurate.
I shot 10 shots into 1/4" and 15 into a bit less than 1/2'" after only 25 shots of load development and break in.
It is a shooter.

Unfortunately it was a rifle I put together for a buddy of mine so I didn't get to keep it!

He called to tell me it was the most accurate hunting rifle he or his buddies have ever shot!

Last edited by RockZ; 03-31-2010 at 07:24 PM.
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  #6  
Old 03-31-2010, 05:29 PM
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Re: Ratchet Rifling

YES!!! the kind of replies I was hoping for. I'm not looking for more velocity per se, but MORE accuracy and , maybe, a little more barrel life? The Shilen conventionally rifled barrels I've had experience with have always 'liked it hot' - shot best at the upper end of velocities and pressures. In my mind I can see the bullet leaving the case neck, and in the the case of a fast twist barrel (1 in 7,8,or9) 'ripping' the jacket slightly as it engages the conventional rifling (because of the fast twist) and disrupting bullet 'integrity' and , as a result, accuracy. With the Ratchet rifling or Canted rifling of the Broughton, as the bullet starts to engage the rifling the jacket isn't 'ripped' or distorted and more accuracy is the result (as if custom barrels aren't accurate to begin with!!!). Heck, maybe I'm just "jerkin the wings off of flys", but it's a thought.
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  #7  
Old 03-31-2010, 10:01 PM
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Join Date: Jun 2007
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Re: Ratchet Rifling

I recently put a shilen 1/14" twist ratchet rifled barrel on in .223 AI, shoots very well, 1/2" or less, shoots right at .25" when I do my job, cleans very very easy, little to no copper fouling, velocity is right where you would expect, mine is 26" and I'm pushing 40 gr ballistic tips out at 3940 fps. overall I'm very happy with the barrel
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