ar15/ scope ?

tazz1958

I was wondering if anyone has put a burris ballistic-plex scope on a flat-top ar. wondering how far off if any it is at 2-400 yards. 223 cal. thanks

sandwarrior

tazz1958,

The problem with ballistic drop compensators is they don't take into consideration for altitude and temperature. I found out the hard way, fixed drop compensators in the reticle are almost always off...for those express reasons. Better to go MOA or MIL and learn to figure all the factors in.

Personally, if I had the bucks I would go with a US Optics ST-6 with the JNG MOA reticle. Check it out on their website: www.usoptics.com The JNG reticle if you look has the quick aquisition features but just enough spread and crosshair thickness to allow a 6x long shot as well. Any AR-15 in decent shape is perfectly capable of utilizing all the range that scope has. Spend the money and you won't regret it.

As for any Burris, I will say you get some pretty good quality. Leupold you won't go wrong with either. Edit: This is kind of the same posts we get with hunting or long range. Scopes are ranked by quality. And if you've ever needed that quality then you will know what I mean. An uncoated 30 yr old Weaver did do a bang up job. Untill we needed it for a coyote shot in near dusk. Sun was up but I couldn't see through the glass. Later on a better Luepy put me in the same position...dead coyote. Newer scopes with better coatings have in some instances even enhanced the new "cheapies" to where they do better in twilight than the old "top-op-of-the-line" Remember to keep apples compared to apples. Bottom line what's the minimum you need for the shooting you will do then get the best scope your wallet can afford.

-Todd

tazz1958

Thanks for your reply, but the reason I posted the question was because I am getting a flat-top 223 and I already have some millett ar15 rings and the burris scope and I was wondering how it would work.thanks

tsr1965

I have not done it with the Burris Ballistic plex, but have done it with the Nikon Buckmaster 4.5-14x40 with the BDC reticle. Sighted in dead on at 200 with the Federal premium with the Nosler partition bullet, and at 300 the first "o" under the cross hair is right there. I did not try it at 400 as I was so astonished to shoot a 2 inch group at 300 yards with the RRA 20" stainles bull set up. I did also use the LaRue Tactical mounting system for it.

Best

sandwarrior

tazz1958,

I see what you're saying. That will actually have to do with what loads you shoot and how your rifle handles those loads. My AR (standard A2 configuration) shot M193 at 3300 fps. If you zero'ed @ 100 then you would use the first stadia line @300 Then hold the second stadia just over 400. That is out of a 5.56 chamber and a 20" barrel.

Your rifle could be different. It may only push out M193 @ 3250. Or you may choose to run M855 or go with Black Hills match which is different again.

What I was saying is you're better off sitting at a range and determining the exact distance of each stadia so you can use them as a sizing tool instead of a given drop. You will also want to do this at different powers. Then make a good notecard or even a rangebook on it. The trajectory they put on there doesn't match most anything. Unless conditions are perfect.