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SR22 Shallow Rifling?

This is a discussion on SR22 Shallow Rifling? within the Ruger Rimfires forums, part of the Pistol & Revolver Forum category; I've enjoyed my Sr22 pistol since I purchased it in the middle of January. The only problem I've had in approximately 600-700 round is severe ...


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Old March 14th, 2012, 07:34 PM   #1
 
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SR22 Shallow Rifling?

I've enjoyed my Sr22 pistol since I purchased it in the middle of January. The only problem I've had in approximately 600-700 round is severe barrel leading when shootiong CCI Blazer bulk ammo. When working to remove the lead buildup I noticed that the rifling appears very shallow when compared to my Model 34 S&W kit gun. It also seems shallower than the rifling in my 10/22. I'm wondering if anyone else has noticed this or is it just my imagination.



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Old March 18th, 2012, 08:52 PM   #2
 
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Every .22 I've ever had has shallow or thin rifling. I can barely see it in my SR22. If you shoot copper plated bullets, you won't have the lead issues. I run a bore snake through mine with a little hoppes and it cleans up quickly and easily.
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Old March 18th, 2012, 11:41 PM   #3
 
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Leading is why I never shoot lead bullets. Copper cased bullets prevent that problem. Federal Bulk 525 is cheap, clean, and good.
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Old April 22nd, 2012, 07:22 PM   #4
 
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SR22 shallow rifling may be good!

I have a Walther P22 and an SR22 (Mar 27 test fire). The rifling ridges are way shorter on the SR22. In fact, I thought the SR22 had a smooth bore until I used magnification. I believe a shallow rifling is to reduce pressure from escaping around the bullet during firing. That would cause the casing to move rearward with more force for ejection (i.e. piston in cylinder). It may be one of the main reasons I find the SR22 much more reliable in cycling rounds of ammunition than the P22. I find the SR22 to be much more accurate than the P22 which means the shallow rifling is also working. 800 rounds through the SR22 so far and 2,300 through the P22 (had it longer).

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Old April 22nd, 2012, 09:07 PM   #5
 
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I was the original poster on this thread but I no longer own the SR22 pistol I was concerned about. I decided a 22/45 Mk III was more what I wanted. I've been very happy with it so far, even learned to field strip it. I looked at the rifling in the 22/45 and it also seems pretty shallow so I guess that's normal for Ruger 22 autoloaders.
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Old April 26th, 2012, 04:17 PM   #6
 
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I've been having the same leading problem with my SR22P.
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