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Accuracy of Burris Ballistic Plex or Leupold Long Range Plex Reticles

 
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  #8  
Old 07-09-2009, 02:09 PM
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Re: Accuracy of Burris Ballistic Plex or Leupold Long Range Plex Reticles

Quote:
Originally Posted by dmnelson15 View Post
Thanks again, I'll use the Hornady calculator to get an idea of the trajectory, find the distance between the stadia lines in the reticle and go practice a bit.


these are for the scope set at 14 power.

100yard zero dead on
200 yard bullet drop 3 inches
300 yard bullet drop 13 inches
400 yard bullet drop 29 inches
500 yard bullet drop 55 inches

100 yard bullet 2 inches high ??
200 yard zero dead on
300 yard bullet drop 4.5 inches
400 yard bullet drop 18 inches
500 yard bullet drop 38 inches
600 yard bullet drop 66 inches


these are the distances in inches between the stadia lines as per Burris . Jim

Last edited by jimbires; 07-09-2009 at 03:34 PM. Reason: clarify
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  #9  
Old 07-09-2009, 03:50 PM
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Re: Accuracy of Burris Ballistic Plex or Leupold Long Range Plex Reticles

I have used the Burris Ballistic Plex a fair amount and I like it alot. I would suspect that you can find a load for your 30-06 that corresponds fairly closely to the stadia wires with a 100 yard zero and a 180 grain bullet like the Nosler ballistic tip or accubond.
Just ran the numbers on the JBM ballistic calculator and looks like that was a good guess. Here is the link to the table. I used 1.7" scope height (that is what mine is with the 4.5-14x), 2800 fps velocity and a ballistic coefficient of .5 and you get pretty close to the drops listed for the 100 yard zero in the post above me.
I come up with:
200 yds -3.4"
300 yds -12.6"
400 yds -28.5
500 yds -52.3"
Keep in mind these are just estimates but I'll bet you will be very close.
JBM - Calculations - Trajectory (Simplified)
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Last edited by sambo3006; 07-09-2009 at 03:54 PM.
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  #10  
Old 07-11-2009, 02:42 AM
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Re: Accuracy of Burris Ballistic Plex or Leupold Long Range Plex Reticles

I'd bet that simple Wide Duplex would get u close to 500 yds. in itself if u're just using it on big game. With that reticle u basically have a 1-stadia ballistic reticle that subtends 8 shooter's minute of angle (MOA) between x-hair and plex post tip @9x. If u zeroed for 250 yds. or so u'd be set up fair enuf for a point blank zero probably all the way out to 300-350 yds. depending on tgt. size. Then u could start applying the reticle, i.e., suppose u knew the 400 yd. drop is say something like 16" (4 SMOA). Then 4/8 = .5, so just aim 1/2 way down to the plex post tip and shoot. Calculate windage too the same way, get a Butler Creek ocular scope cap cover and put all your dope in it on a sticker. Suppose the 500 yd. drop is 35" low (7 SMOA), that's 7/8 = .9, so aim 9 tenths down to the PPT. U'd be surprised the accuracy of interpolation really using this kinduva system. Here's what my dope stickers look like on some of my rigs--

400-.5-.3

...range, elevation, and windage no headers needed.
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  #11  
Old 07-13-2009, 10:45 AM
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Re: Accuracy of Burris Ballistic Plex or Leupold Long Range Plex Reticles

Thanks, that sounds like a simple system to use, and the simpler the better.
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  #12  
Old 07-13-2009, 03:59 PM
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Re: Accuracy of Burris Ballistic Plex or Leupold Long Range Plex Reticles

It is really quite simple to buy exbal with its built in reticle tool and run a variety of possibilities in a few minutes.

All you need is the MV and run the numbers for any power and stadia line

Works really quite and extremely accurate.

BH
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  #13  
Old 07-27-2009, 11:05 PM
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Re: Accuracy of Burris Ballistic Plex or Leupold Long Range Plex Reticles

I have used the burris ballistic plex with success on several rifles for about 5 years. They can be pretty effective on big game out to 500 yds, but I had to put in some significant range time to tune the scope setting for vital area hits at all ranges to 500yds. All the manufacturers are clear this must be done to effectively tune the scope to the rifle and load. As stated in previous post, you must be consistent in selecting your magnification setting. If you tune everything to be on target at 9x and try to use the ballistic plex when your scope is at 5x you will miss big. Don't ask me how I learned this critical piece of information. ha ha ha
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  #14  
Old 07-27-2009, 11:25 PM
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Re: Accuracy of Burris Ballistic Plex or Leupold Long Range Plex Reticles

In response to the second part of your question- I recently set up my 300wsm with a leupold mark 2 scope. I called leupold, gave them my load data and $60. Two weeks later I received my custom laser ingraved elevation turrent. I have shot it several times from 300 to 1000yds. It is dead nuts on the money. No burning up ammo trying to find the best compromise of a scope setting. It is significantly more precise than a ballistic reticle. And it is effective to 1000yds. And it is alot of fun hitting your target at 1000yds. I don't care who you are. It will put a smile on your face.
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