Small vs. Large Aperture on A2

J

Jack Carson

New member
This is in regard to my earlier post. I know the smaller aperture is for longer ranges but I am not seeing any advantage using the larger aperture for short range shooting in terms of time.

Today I used a PACT timer to see the difference in speed and I was surprised to find virtually no advantage with the large aperture. Here was the test I used: Starting with my back to the target at 50 meters, rifle slung over my right shoulder, muzzle down, I stepped approximately one yard to my left at the sound of the timer while turning and bringing the rifle off my shoulder. I then acquired a sight picture and fired one round at a standard IDPA target. Using both apertures my times were the same ranging from a fastest of 3.9 seconds (small aperture) to the slowest of 5.7 seconds (also small aperture.) Times with the large aperture all fell in between.

The main difference was that I had no hits outside the center ring wiht the small aperture but three fell slightly low using the large aperture.

What am I missing? Do you think I am doing something incorrectly? BTW, I live in a wooded area and most all of my shots will be in the very close to 150 meter range with 25 to 75 meters probably the most common.

Any help greatly appreciated. Jack
 
Sounds to me like you are one of the few that put priority on a proper sight picture. Sooo.....bout anything works for you. The one that is most comfortable would be the proper one for you.

I find that larger aperture is faster in low light conditions.

Nice goin.

Sam
 
Of course! Thanks Sam!

What the h**l was I thinking! I have not tried this rifle in low light conditions. I spend a lot of time working with my handguns in low light and have not spent any time working with the rifle in low light.

I bet you are right. I will try that next weekend. And, you are right that sight picture is very important to me. Consitant hits, and by that I mean where the bullet was intended to go, are the single most important thing to me. The only thing worse than a miss is a slow miss.

Thanks for your insight. Loved Arizona every time I've visited.
jack
 
Let me see if I can explain this properly and without dragging the explaination out...

The smaller aperature is for long distance shooting, 300 meters and above, the larger aperature is for 0-200 meters or for use during low light situations. Sometimes in low light or no-light I "V" my rear sights and look over the rear to the front, depending on the size of the target and distance from me to the target. This works well on man sized targets out to around 50 meters.

I find that this sight system works well for military use. As I live in CA, I don't own one of my own (YET). I am hopefully moving out of this state soon!
 
The difference?

About 3 clicks. There is a small elevation difference to enable one to be within 2" from 25 to 200 meters. With the long range (small apeture) a soldier is no more than 8" from aim point to 400 meters. From there, the adjustment allows for center mass shooting at known distances. Have a range card and dial in your targets!

I've noticed when regulated to be on at 300 with the A2 small apeture, I need 1 click past 600 to reach 600 yard targets with M193 ammo. Yes, the bullets do fly that far. Supported prone shots are all over the black with Win Q3131. X's by luck only but I can keep 90% on the frame ;)
 
Thanks to everyone who replied!

In the end I answered my own question with the help of C.R. Sam. I can get on target as quickly (sometimes faster) with the small aperture and get more sure hits...DUH! no brainer here. I must practice in low light conditions with the larger aperture. Low light conditions will be dictacting shorter ranges. In turn, short ranges mean a slightly lower point of impact won't matter quite as much.

In the end, ( I will coin a phrase here) "Speed is Fine. Accuracy is Final."
 
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