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Coyote Hunting - From 10 Yards to over 1,000 Yards Techniques For Coyote, Fox and Cat Hunting


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22-250 to 600 yards max, does anyone do it?

 
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  #15  
Old 02-22-2014, 12:39 AM
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Join Date: Jan 2004
Location: New Castle colorado
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Re: 22-250 to 600 yards max, does anyone do it?

My rifle also has a 14 twist barrel. I've been shooting 52 gr Amax's at a little over 3800 fps, and 52 gr JLK Low Drag bullets at just over 3600. The rifle, a Cooper, shoots both bullets in the .4 MOA range. As has been mentioned, accuracy is great, but even a slight breeze out around 5 and 600 yards blow the bullets all over the place. My furthest shot has been a prairie dog at 683 yards.
I have the barrel about shot out, and will rebarrel with a 7 or 8 twist to shoot the 80-90 gr bullets. Most of my PD shooting is not so much high volume as it is long distance.
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  #16  
Old 02-22-2014, 01:16 AM
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Join Date: Feb 2014
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Re: 22-250 to 600 yards max, does anyone do it?

I used the Berger twist calculator for my Hornady 53 gr v- max it says unstable @.74 but it also says the 50 gr v- max would be unstable too @.84. Marginal stability starts at 1.0 with optimal being 1.4. Another more comprehensive calculator gives me 1.1 for my 53's. I figure if it shoots a- maxs alright it should be ok.
683 yards on a Pd is some pretty fine shooting. My barrel is probably just over a 1000 so not worth a rebarrel yet. I really want to get to the range and try them
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  #17  
Old 02-24-2014, 09:22 AM
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Re: 22-250 to 600 yards max, does anyone do it?

Quote:
Originally Posted by gunners View Post
I used the Berger twist calculator for my Hornady 53 gr v- max it says unstable @.74 but it also says the 50 gr v- max would be unstable too @.84. Marginal stability starts at 1.0 with optimal being 1.4. Another more comprehensive calculator gives me 1.1 for my 53's. I figure if it shoots a- maxs alright it should be ok.
683 yards on a Pd is some pretty fine shooting. My barrel is probably just over a 1000 so not worth a rebarrel yet. I really want to get to the range and try them
Keep in mind that the Berger calculator is at its best with conventional jacketed hollow points. JBM Ballistics has a twist calculator that takes into account the plastic tips, which can have a big effect on the required theoretical twist. Their calculator can be found here:

JBM - Calculations - Stability

One other thing to consider is that there is a sizeable difference in length between the 52 grain AMAX and the 53 grain VMAX. The AMAX is very close in dimensions to the 50 grain VMAX. The 53 VMAX has a very aggressive nose, using the same profile as the nose on the 75 grain AMAX. It is longer, overall, than the 55 grain VMAX.
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  #18  
Old 02-26-2014, 12:24 AM
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Join Date: Jan 2004
Location: New Castle colorado
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Re: 22-250 to 600 yards max, does anyone do it?

I was down in eastern Utah today shooting PD's. I got 3 between 523 and 532 yards while the breeze was still light at 2-3 mph. Once it got up around 8-10, any hits at those ranges would involve too much luck so I switched to a different rifle.
This one was at 532 yds.
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22-250 to 600 yards max, does anyone do it?-22-250-532-yds.jpg  
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  #19  
Old 02-26-2014, 02:10 AM
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Join Date: Feb 2014
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Re: 22-250 to 600 yards max, does anyone do it?

I'm thinking I'm going to need a bigger caliber like a 243/260 or similar. The wife won't like that at all. Might have to sell some guns to get some guns. I was toying with the idea of a DTA SRS and just have to swap barrels, but they are pretty heavy for normal hunting and expensive, but I do like the concept. Looks like I'm going to have to do some figuring out
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  #20  
Old 02-26-2014, 08:21 AM
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Location: Safford Arizona
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Re: 22-250 to 600 yards max, does anyone do it?

I run the 53 vmax out of a savage model 12 with a 12 twist. Im getting 3680fps with 37.0gr of IMR 4064. Shoots in the .2s - .3s at 100 yards and holds half moa or better on calm days out to 600.
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  #21  
Old 02-26-2014, 09:21 AM
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Join Date: Nov 2012
Location: Wyoming
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Re: 22-250 to 600 yards max, does anyone do it?

Quote:
Originally Posted by stomp442 View Post
I run the 53 vmax out of a savage model 12 with a 12 twist. Im getting 3680fps with 37.0gr of IMR 4064. Shoots in the .2s - .3s at 100 yards and holds half moa or better on calm days out to 600.
Stomp,
What's your barrel length?
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