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New 22-250 barrel

 
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  #1  
Old 01-20-2011, 01:15 PM
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Join Date: Jan 2007
Posts: 29
New 22-250 barrel

I finally shot out my factory 22-250 barrel on a Win. 70. I am having a local gunsmith order a Krieger #3 contour 1/14 twist 24" long. I carry this gun alot for calling coyotes. Most shots are within 200 yds. with the 300 to 400 yd. hang up once in a while. My gunsmith and I were talking about what twist, he asked me what grain of bullets i plan on shooting. I said I would stay with 55 grain Vmax bullets. He recomended 14 twist. I do practice out to 400 yds. I have read alot about guys going with faster twist to shoot 75 grain bullets or larger at longer ranges. For my use I think the 55's work just fine. Dead Is dead right? Out to 300 to 350 yards the 55, should be a little flater shooting. I understand I would get my but kicked with this rifle shooting 600 yards and up against a rifle with a 1/8 twist shooting 75 or 80 grain bullets, but I really don't plan on shooting that far with this rifle. I have other guns for longer range.
One more thought. What kind of fps. differance are any of you seeing between 22" vs 24"? The length of a 24" doesn't seem unhandy to me but if there isn't much to be gained with 24" I would have him cut it down.
I would like to hear other opinions on barrel contour, twist, length etc.
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  #2  
Old 01-20-2011, 04:05 PM
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Join Date: Jun 2010
Location: greenwood, IN
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Re: New 22-250 barrel

Quote:
Originally Posted by tlshootst View Post
I finally shot out my factory 22-250 barrel on a Win. 70. I am having a local gunsmith order a Krieger #3 contour 1/14 twist 24" long. I carry this gun alot for calling coyotes. Most shots are within 200 yds. with the 300 to 400 yd. hang up once in a while. My gunsmith and I were talking about what twist, he asked me what grain of bullets i plan on shooting. I said I would stay with 55 grain Vmax bullets. He recomended 14 twist. I do practice out to 400 yds. I have read alot about guys going with faster twist to shoot 75 grain bullets or larger at longer ranges. For my use I think the 55's work just fine. Dead Is dead right? Out to 300 to 350 yards the 55, should be a little flater shooting. I understand I would get my but kicked with this rifle shooting 600 yards and up against a rifle with a 1/8 twist shooting 75 or 80 grain bullets, but I really don't plan on shooting that far with this rifle. I have other guns for longer range.
One more thought. What kind of fps. differance are any of you seeing between 22" vs 24"? The length of a 24" doesn't seem unhandy to me but if there isn't much to be gained with 24" I would have him cut it down.
I would like to hear other opinions on barrel contour, twist, length etc.
a 14 twist will do a 55 grain Vmax just fine, but if you decide to try the 55 grain Nosler BT's your in trouble. I'd go with a 12 twist from the start, and if by chance your looking at the 53 grain Hornaday Vmax you might want a 10 twist barrel. I shoot 12 twist barrels in 22-250 with several 55 grain bullets, and also shoot the 14 twist with 55 grain Vamx bullets. The 14 twist kinda locks you into a narrower window to pick bullets from.
gary
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  #3  
Old 01-21-2011, 12:24 AM
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Join Date: Jan 2011
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Re: New 22-250 barrel

hey i'm gonna agree with this guy, odd! Even if you stick with 55s your better with a 12 twist, 24" is ok 26" is better, next time I put another on it'll be 26" 9 twist, you can shoot 55-75grn and still not hurt it, and they love 69grn SMKs with that twist. You may also want a little heavier contour. You might also be surprised what you can do at 600 yards with 40, 50, or 55grn noslers!
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  #4  
Old 01-22-2011, 08:53 AM
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Join Date: Jan 2007
Posts: 29
Re: New 22-250 barrel

Why would a 53 g. vmax be harder to stabilize than a 55 grain? It must be built totaly differant.
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  #5  
Old 01-22-2011, 09:34 AM
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Re: New 22-250 barrel

Different bullet manufacturers usually have a different amount of bearing surface for identical weight bullets, like he was saying you can stabilize a 55grn v-max in a 14 twist but a 55 grain nosler doesn't do very well because it has more bearing surface. If you look at noslers recommendations for a 60 grain ballistic tip which obviously is not much bigger than a 55grn but they recommend a 10 or faster twist, hope that helps.
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  #6  
Old 01-22-2011, 12:56 PM
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Location: greenwood, IN
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Re: New 22-250 barrel

Quote:
Originally Posted by tlshootst View Post
Why would a 53 g. vmax be harder to stabilize than a 55 grain? It must be built totaly differant.
weight has nothing to do with stabalizing a bullet in flight. It's all in the ballistic coefficent. The 53 grain bullet from Hornaday (v-max) has a .29 B/C, while the 55 v-max has a much lower number. The B/C on a Nosler 55 grain BT is much higher than a 55 grain v-max, and this is why they don't do as well in a 14 twist barrel. I shoot 55 v-max bullets with a 14 twist barrel all the time, but a Nosler BT is all over the place. Yet a Nosler 60 grain partition will shoot very well. The difference is in the B/C

Under perfect conditions (never gonna happen) the 53 gr. v-max will work in a 12 twist barrel, and be very ragged in a 14 twist barrel (1:13 twist is the perfect number), but when you throw in the factor number it can't get there. At something like 95% you can make a 12 twist barrel work, but it really needs an 11 twist barrel to be safe.
gary
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  #7  
Old 01-22-2011, 08:28 PM
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Join Date: Feb 2006
Location: az
Posts: 2,229
Re: New 22-250 barrel

both of mine are 26 inch barrel . both shoot the 50 baltip extremely well. both can shoot 55 and 60s no problem. you can go to a different rifle for heaviser stuff, if you need to . the 1-14 twist will do all you need it to . +some.
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