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Posted: 8/21/2004 6:48:34 AM EDT
[#1]
The illuminated donut is visible when you pull your head back a bit, but the view through the scope is occluded somewhat. I find this helps with the BAC for close up work - not distrated by a clear view through the scope. I believe it will work with any of the ACOG reticles, not just the famous donut.
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Posted: 8/21/2004 11:43:10 AM EDT
[#2]
The style shooting you are talking about will work with any of the ACOGs that have a ful time illuminated reticle, not just the donut. TA31's come with three different reticle choices
TA31 = donut TA31A = triangle TA31F = chevron The point of the donut is that it is large and bright and can be seen easily using the BAC. To make the longer shots, you dont have to wink or close an eye. The pont of BAC is that your mind will automatically switch from the magnified to unmagnified view as you are moving around and area (non-magnified view) or closing in on or focusing in on a target (magnified view). Each of the reticles have advantages and disadvantages over the other and I have come to the conclusion that after reading about them and knowing what these advantages/disadvantages are... you should go with whatever one you seem to like looking at best. Its hard to go wrong with any. |
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Posted: 8/21/2004 1:21:20 PM EDT
[#3]
I have the donut and the triangle. You don't have to "wink" for either at any distance (both eyes open. Full peripheral)
The triangle is better (easier) at hitting one inch circles at 100 yards. If you don't have time to aim, either reticle will hit center mass at 300 yards. If you are moving while shooting, the donut should be your choice (no angles on a circle). |
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Posted: 8/21/2004 1:27:44 PM EDT
[#4]
what barrel length/ammo is the TA31 intended for?
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Posted: 8/21/2004 1:38:24 PM EDT
[#5]
20" 55gr (milspec velocity) for the BDC. Others more knowledgeable than I have said the BDC is a relative thing. Figure out your scope at all distances, bullet sizes, barrel lengths and velocity. |
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Posted: 8/21/2004 2:39:14 PM EDT
[#6]
Is there an ACOG more suited to a 16" barrel with xm193? Will it still have the lighted center point for close in?
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Posted: 8/21/2004 2:52:55 PM EDT
[#7]
consult
http://www.ar15.com/forums/topic.html?b=3&f=18&t=152794 |
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Posted: 8/21/2004 2:57:26 PM EDT
[#8]
There aint much difference out to 200 yards with the 20" xm193 carry handle ACOGs on a carry handle of a 16" using xm193. Actually; no difference. IMHO |
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Posted: 8/21/2004 2:58:45 PM EDT
[#9]
The NSN and some of the TA31s are calibrated for 62 grain in a 14.5 inch barrel and word is they work well with 16 inch rifles and 55 grain ammo. |
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