Doesn't mean you have to be zeroed at 100 though.*******
You have to produce a target from the 100yd range with a consistent shot group to qual at the 200/300 yd. range.
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Doesn't mean you have to be zeroed at 100 though.*******
You have to produce a target from the 100yd range with a consistent shot group to qual at the 200/300 yd. range.
******Doesn't mean you have to be zeroed at 100 though.
******There's a list of who you can shoot?!?!
********Ok... The Army zeroed at 25m and the Marines at 36y for approximate re-zero at 300m/y. The only other zero I'm familiar with is a 50/200 yard zero. I've never seen a 100y zero but I guess if that's all you shoot then go for it...
********
Correct, we zeroed at the 25m range and then were expected to hit targets on a popup range from 50m to 300m.
I was also in the first group, first 8 shots with my AR were very low, off the target but on the backing. After a few adjustments got my second group on paper, high left. I borrowed a rifle rest, now I need a spotting scope. I think I was the only shooter w/a AR and iron sights.
Doesn't mean you have to be zeroed at 100 though.
Who zeroes a rifle at 100 yards?
Who zeroes a rifle at 100 yards?
******Your initial POI was about 10" low, and was shot using 62 grain XM855.
After your first recorded shots patterned low (10" +/-), you ran out of XM855 and changed ammunition.
You switched from XM855 (which sucks, BTW) to 55 grain PMC TAC. You also dropped your front sight two clicks (which would add four inches to your original XM855 POI)--and the additional muzzle velocity of the XM193 added the rest.
If I recall correctly, after switching to the PMC TAC, you shot an initial 5-shot group of about 3 1/2 inches with iron sights at 200 yards.
That was good shooting.
Add back the two clicks elevation on the front sight, and add 2 clicks right windage and I'd guess you would've been 9- or10-ring.
See you around the range.
*******Download a ballistics app (I'm using Shooting Solution) and play with it. It'll tell you all about POI at various distances, with your zero, and your ammo.
Yep! Has tons of factory rounds pre-loaded. Let's you set zero distance, shooting distance, wind, etc. Can't speak for its accuracy but from what I've seen so far it's pretty darn good. I'm going to use it to get me started as I prepare for Harvard quals.
Agreed. Like I said, they can provide a starting point. I definitely wouldn't go from 50 yards to 1000 based just on that data! However, a rough guideline of whether I'll be a few inches high or a few inches low at, say, 200 or 300, is useful as a ballpark.
******
Thanks for the clarification.
So you recommend the 55g PMC ammo for my AR with a 1/9 twist barrel for practice ammo?
You still have to do that...Yea, but that's cheatin'! Where's the practice, the discipline to hit bull at 100 and go from there?
*******Seems to shoot good for you, and it's about as reasonably priced as practice ammo gets for the AR (unless/until you start reloading). Check in with the high-power competiton guys and see if there is a 55-grain load that seems to shoot more consistently, and maybe give it a try. Is your rifle chambered for .223 or 5.56--or .223 Wylde? Even if it is .223, you might want to try shooting different flavors of 5.56 spec ammo through your rifle and see if you run into any problems. The XM855 didn't give you any problems. I think I've hear guys say good things about the consistency of Lituanian ammo (GGG headstamp--5.56 Nato spec) as well as the Australian 5.56.
Next step up for your barrel twist (and better ballistic coefficient for longer range) would be a 69 grain Sierra Match King. The Australian Outback (sold by Cabelas) seeemed like a bargain at the $12/20 round price point. The Israelis make a 69 SMK that Cabelas carries, price is $17/20 rounds--but I think it is more for personal protection (crimped with a cannelure, I think, but check for yourself).
If money is tight I have a beater spotting scope I'd toss you. It's a Bushnell, glass seems decent. I found it at the dump (lol), but it will resolve .30 cal holes at 200--next trip to the range I'll see if it resolves AR holes on a black bullseye and let you know.
*******
This Konus seems to be reasonably priced and according to other posters works at 200/300yds.
https://www.bhphotovideo.com/c/prod...V2B1MyaLCDfN_yZE-W0l4dpgzAbqLXPZaIaAufp8P8HAQ
Yes, that scope is an excellent value. It is a very good compromise of weight, waterproofing, ruggedness, and useful features. You'll want to find a tripod of some sort, as the one that comes with is absolutely useless. Optics planet has it for $202 after 12% discount. Amazon also has competitive pricing--$197 with free Amazon Prime shipping.
https://www.amazon.com/Konus-7120-2...?ie=UTF8&qid=1497987067&sr=8-5&keywords=konus
Cheapest I've seen it is $179, a price which comes and goes depending on where the vendor is in their purchase cycle, trying to accomplish tiers of discounts.
Current | $197.75 | Jun 20, 2017 |
Highest * | $275.50 | Jan 21, 2013 |
Lowest * | $172.22 | Apr 29, 2015 |
Current $197.75 Jun 20, 2017 Highest * $275.50 Jan 21, 2013 Lowest * $172.22 Apr 29, 2015
Camel Camel Camel
You can setup price alerts as well. If you buy from Amazon it is a must have.
and there are more than a few who don't qual. at 200...lots of AR-15 riflemen and women think its easy..
Done with, gasp, an AR.Come Qual at the next go and just STFU about it, OK?
Done with, gasp, an AR.
Good thing the 5.56 isn't effective past 100 yards.