devus
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Posts: 6
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Post by devus on Sept 22, 2014 9:26:35 GMT -5
I have been looking at the Nikon Coyote 4x12 it may go on my umar 22-250 just wondering if anyone has any experience with this particular glass set up. The questions I'm having is are the circles accurate? Just wanting something more simplified than clicking my turrets all the time, thanks. Devus
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Post by dawgdad on Sept 22, 2014 9:48:55 GMT -5
Devus, I have a simple method I use for zeroing my rifle scopes for coyote hunting. I set a Point Blank zero where the trajectory of the bullet stays within 1.5" up to 1.5" below the crosshairs. Any coyote inside this distance ( 225 yards for the .223 and 275 for the .243) is just hold center and shoot. You have to be able to hold less than 1 MOA to make this work well. If you can't group under 1.5" at 100 the accuracy of this method falls off due to your error. For a 22-250 UMAR you can get a Point Blank zero from 30 yards to 300 yards where all you do is hold middle of the fur. Any thing longer than that you have time to crank the knobs for the first shot anyway. You need to know the velocity, BC, Bullet weight and height of the center of the scope to the center of the bore to calculate a PBZ. www.shooterscalculator.com/point-blank-range.php?df=G1&bc=0.28&vi=3700&sh=2.2&ts=3&cfa=on&alt=600&tmp=40&bar=29.92&hum=60To answer your initial question - you will still need to shoot with your load at the longer distances to verify where they actually land. I have heard of some guys using the top an bottom of the circles as aiming points too. |
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devus
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Posts: 6
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Post by devus on Sept 22, 2014 10:36:33 GMT -5
Dawgdad
Thanks for that link. Think it will make zeroing easier and less expensive. As far as the BDC goes I know the 250 doesn't need it I just want to push the envelope for long range with it at these dogs. They are getting smarter and hang up more than years past. Plus the 6.5 is getting way to pricey to shoot. Thanks
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Post by dawgdad on Sept 22, 2014 13:44:14 GMT -5
Devus, It makes it real easy to set it 1" up at 100 and forget it. 99% of the coyote I kill are under 150 yards anyway. How long a shot are you wanting to take? The 250 will certainly do the job on a coyote but make sure you use the other tab on that link I posted and figure out your velocity and energy past 400 yards. If you are running a 45 gr. bullet they shed energy quickly. They have over 1200ft lbs. at the muzzle, about 500ft/lbs. at 400 yards and are under 250 ft./lbs at 600 yards. Other may disagree but my belief and experience is you are looking to wound a coyote with any less energy than that. www.shooterscalculator.com/ballistic-trajectory-chart.php?t=c60dcd95Also note that at 600 yards you are down 60 inches from a 100 yard zero and a 10 mph cross wind pushes you 44 inches off target. I shoot a lot (close to 3000 rounds) at 200,300 and 600 yards all summer and know how to turn the knobs and estimate wind and range. This is something you want to practice and not have to pull out a book and figure out while the coyote is standing broadside at 450. Even with the Point Blank zero I have a cheat sheet taped to my stock with come ups out from 300 to 600 yards in 25 yard steps. Make very sure your scope is tracking straight too. If you crank up for a 600 yard shot you will be about 40 clicks up from the +1" at 100 yards PB zero. Shoot a shot at 100 yards towards the bottom of a target. Then add the 40 clicks and shoot at the same aiming spot. You should hit 10" straight up over the first hole. Any major right to left deviation could be due to the scope not being mounted totally square, a cant(tilt) in your hold, or the crosshairs not tracking right. Better to know that ahead of time than wonder why you missed way off to one side or another. It is say to say you missed the wind call but you have to be sure its not the equipment. |
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Post by hoosierdaddy on Dec 2, 2014 0:19:39 GMT -5
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Post by hoosierdaddy on Dec 2, 2014 0:33:05 GMT -5
and don't forget changing your magnification on your scope will change your point of impact when trying to dial in each of your redicals
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Post by ta17rem on Dec 2, 2014 14:31:30 GMT -5
I have and use the Nikon pred. scope and like mentioned just go to the "spot on" page and put in your information as to load you are using.. Its close enough for minute of coyote..
I also use BDC dials with the yardages already put on the dial, just turn and burn and is also pretty dam close till you get out past 800 yds....
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Post by moose1am on Dec 4, 2014 15:01:36 GMT -5
I have been looking at the Nikon Coyote 4x12 it may go on my umar 22-250 just wondering if anyone has any experience with this particular glass set up. The questions I'm having is are the circles accurate? Just wanting something more simplified than clicking my turrets all the time, thanks. Devus Check out the Nikon Web site. I have the Nikon M-223 Scope and I like it. I have the Nikon Program that calculates the POI for each of the tick marks and circiles on the reticle for different conditions and ammo loads. So far my longest shots are at the 200 yard ranges. I don't have access to the 500 yard range near here. All I know if that I sight in the scope at the 50 yard range for center of the reticle cross hairs and shoot the bulls eye pretty good( accurately and with precision are good) when I hold the AR15 in the Caldwell DFT Lead Sled. The reticle is probably calibrated in MOA and the distance between the tick marks and the circles does not change unless you change the magnification. I shoot at the fullest magnification but I think that the program also allows for different magnification setting. Just make sure that you adjust the parallax knob to adjust the Objective focal point As air density changes with air temperature, air pressure and elevation which had an effect on both the density and pressure of the air the bullets path may change. How knows maybe the position of the moon had some tiny effect on the bullets patch. Or minute changes in the earths' gravity over time and distance may have some tiny effect on the bullets path. But you will have to get out and shoot a lot using that scope's BDC reticle and figure out what the optics are doing with your particular gun, ammo and conditions. I wish I had access to the 500 yard range where I could test my optics more fully. |
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Post by ta17rem on Dec 4, 2014 17:48:57 GMT -5
steel plate at 200 yds. 221 f.b. using Nikon coyote plex.. Good enough...  300yds. same cartridge and scope.....  |
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Post by dawgdad on Dec 5, 2014 9:56:53 GMT -5
... As air density changes with air temperature, air pressure and elevation which had an effect on both the density and pressure of the air the bullets path may change. How knows maybe the position of the moon had some tiny effect on the bullets patch. Or minute changes in the earths' gravity over time and distance may have some tiny effect on the bullets path. But you will have to get out and shoot a lot using that scope's BDC reticle and figure out what the optics are doing with your particular gun, ammo and conditions. I wish I had access to the 500 yard range where I could test my optics more fully. Moose, How far are you from Edinburgh IN? They have matches there every month during the spring summer and fall where they shoot 300, 500, 600 and back to 800,900 and 1000 and more. They have a class known as F- class where you shoot from the ground in the prone position but can use a bipod or front rest and optics. Most of the guys there shoot with slings and iron sights though. Your AR with light bullets will be maxed out at 600. Look on CIHPRS web site for more information. |
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Post by moose1am on Dec 6, 2014 14:00:49 GMT -5
How far are you from Edinburgh IN?
They have matches there every month during the spring summer and fall where they shoot 300, 500, 600 and back to 800,900 and 1000 and more. They have a class known as F- class where you shoot from the ground in the prone position but can use a bipod or front rest and optics. Most of the guys there shoot with slings and iron sights though. Your AR with light bullets will be maxed out at 600. Look on CIHPRS web site for more information.[/quote]
I'm about 3 hours from Indy and about 3 hours from Louisville, KY. I had to look up on Google to see where Edinburgh, IN was. We have a 500 yard range down here but it's private and I'm not a member. It's only about 15 minutes from my house so maybe one day I'll try to join that shooting range and buy a membership.
I've not shot my AR15 much since I got my first pistol. I'm having so much fun shooting my pistol and it's easier to carry and clean as compared to my AR15. So I like shooting the pistol more now.
I'm undergoing some eye surgeries this week and next week so I may not be able to do much until after the surgeries and after or if my eye's heal properly.
My eye surgeon performed surgery in his office on my right eye yesterday. I'm able to see without wearing eye glasses now and can drive without glasses or contacts. But my vision is still a little off yesterday before he did a minor correction on my Right Eye. I'm hoping that it will make my sight clearer after the incisions (scratches) heal.
Next week I get a major eye operation on my left eye and that will take about 6 months to a year to fully heal. They are doing some work on my retina and that's a very delicate operation that requires a specialist eye surgeon.
So again I'm sidelined by health problems. If it's not one thing it's another.
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Post by hoosierdaddy on Dec 6, 2014 18:05:59 GMT -5
Edinburgh isn't to far from me Jeff straight up 65
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devus
New Member
Posts: 6
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Post by devus on Jan 21, 2015 23:00:10 GMT -5
I would like to thank everyone for there input and suggestions I went with the 4.5x14 coyote bdc on the umar its a lazer. It's dropped 6 so far and i'm sure more to come if I do my part. It's nice having the multiple aim points wish I did this as soon as they came out. Ranges on the dogs have been from 50 to 450 yards. Some while calling and others with the hounds. Once again thanks, best of luck and be safe.
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