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Posted: 12/16/2003 12:22:59 PM EDT
[#1]
Yes, that's correct. When the large aperture is zeroed at 50 yards (for a proper 50 yard/200m battlesight zero), the large aperture will be zeroed at (approximately) 300m, and with M855, the notch and line at the top of the standard #40 aperture would give you a 600m zero.
The #40 is also available without the cut-off/notched top on the small aperture; that's the #40A2. The rest still applies. -Troy |
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Posted: 12/16/2003 12:32:11 PM EDT
[#2]
Troy, it has been my experience that when the large aperture is set up with a 50yd/200m zero, the small aperture is actually zeroed at about 400m and about 5" high at 100m w/ SB SS109.
Haven't been able to verify any of the longer ranged zeros of the small aperture; but based on how high it is hitting at 100 and 200, I'm thinking that the small aperture will be zeroed high for 300m if the large is set up for IBZ. |
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Posted: 12/16/2003 2:24:01 PM EDT
[#3]
Well, keep in mind that all of this is going to be affected on the ammo you use, the length of barrel you have, and environmental conditions (which affect bullet velocity, and therefore trajectory). You could use ammo from the same lot and zero in the winter, and in the summer, your zero will have changed.
The only way to know for sure is to test with your rifle and your carry ammo, and make notes. Everyone will have a slightly different experience. Now, once we're all shooting LASER guns... [:D] -Troy |
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Posted: 12/16/2003 4:11:31 PM EDT
[#4]
Not to Hi-Jack the thread, but please help a knucklehead on this, I ask:
Simply put, when achieving IBZ with the ARMS 40, at 50 yrds, should point of impact coincide with point of aim using the larger aperture? thanks.... |
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Posted: 12/16/2003 5:10:44 PM EDT
[#5]
Correct.
-Troy |
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