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338 SIN Testing

 
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  #15  
Old 06-30-2011, 04:47 PM
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Join Date: Dec 2008
Location: Upper Midwest
Posts: 174
Re: 338 SIN Testing

Quote:
Originally Posted by HRstretch View Post
Devin,
What length barrel is your test gun?
Devin's rifle has a 24" barrel. This is a quote of Devin from a post on "Savage Shooters" site:


"The other thread was getting so long I thought I would start another and list my data as I shot it. Had a great shoot this morning with the 225 grain cutting edge bullet .640 bc. Best accuracy out of my 24" barrel seems to be between 3100-3150 fps."

Hope Devin doesn't mind me answering for him....he's extremely busy...which is a good thing for his business.

Wayne
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  #16  
Old 06-30-2011, 09:37 PM
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Join Date: Oct 2010
Location: Watertown, SD
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Re: 338 SIN Testing

My rifle has the 26" barrel, Don's has the 24" barrel.
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  #17  
Old 07-01-2011, 05:44 AM
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Join Date: Dec 2008
Location: Upper Midwest
Posts: 174
Re: 338 SIN Testing

Quote:
Originally Posted by sinarms View Post
My rifle has the 26" barrel, Don's has the 24" barrel.

Sorry...My bad. We've talked about so many barrel lengths.

Have a great 4th!

Wayne
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  #18  
Old 07-01-2011, 07:24 PM
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Join Date: Nov 2006
Location: Dayton, Nevada
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Re: 338 SIN Testing

Quote:
Originally Posted by sinarms View Post
My rifle has the 26" barrel, Don's has the 24" barrel.
As HAMMER would say, "carbine" barrels.

Can't wait to see what a "rifle" length barrel will do with the Sin.
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  #19  
Old 07-04-2011, 07:03 AM
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Re: 338 SIN Testing

Just tagging to follow.

Tank
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  #20  
Old 07-04-2011, 09:39 AM
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Join Date: Jan 2008
Location: NW Montana
Posts: 817
Re: 338 SIN Testing

I had a custom 338 edge with a 30 inch barrel plus brake and my load with 300 gr smk was 2840 fps. My new custom 338 ultra with 300 gr smk is running 2760 fps with a 26 inch barrel that's only 80 fps.Punching these numbers into a ballistic calculator I don't see any real advantage to have 30 + inch barrels unless a guy is running like a 338-378 or bigger.The 24 or 26 inch barrel is going to have less barrel whip and is much more portable.I think I may even be able to run this 338 ultra around 2800 fps with the 300 gr in the 26 inch barrel with a bit more testing.I think the standard 338 ultra and the 338 sin make alot of sense.
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  #21  
Old 07-04-2011, 12:09 PM
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Join Date: Dec 2008
Location: Upper Midwest
Posts: 174
Re: 338 SIN Testing

I'll be sure to post some #'s when my rifle gets put together. My rig will have a 28" tube or there abouts. It might be a little too long for what the SIN was designed for....We'll see...but I've always got this notion that the barrels can be set back and rechambered down the line and performance should remain relatively the same. Guess it's one of my short comings.

This round is a very viable option for guys like me....with standard LA's who want near .338 LM performance. The more testing and data will shed light on how well this round really performs. I remain extremely optimistic about this new rounds potential.

Wayne
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