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15 MOA base


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Old 05-08-2009, 02:32 PM   #11
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Originally Posted by truevil1313 View Post
After trying 3 different book stores and searching the library's computer system, i came up empty handed on finding the books locally, so I just went ahead and ordered them. I guess they should be in next week. Thanks for the advice JD.
I think that you will find the reads worth your time and it will open up a whole different bag of questions for you in the future months.


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Old 09-17-2016, 07:18 PM   #12
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Default Optic Base probably critical beyond 600 yards

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Originally Posted by truevil1313 View Post
Is a 15 MOA base a good idea for shooting 100-600 yards?
You didn't mention what cartridge you shoot. Most 30 caliber cartridges will shoot to 600yards with less than 15 MOA of adjustment. In that case a 15 MOA base is not important.

I don't shoot an AR15 but the 0.223 55gr has about a 0.2BC and MV of 3,200 fps. 600 yds require about 21 MOA, again not likely to need a base.

A 20 MOA base can be too much for some optics. My long distance optic has has 52 MOA in the up direction, only 12 MOA in the down direction. I can zero a 15 MOA base perfectly. I am 4 MOA short of being able to zero with 20 MOA base. With the 20 MOA base I shoot 4" high at 100 yards, and 0" high at 300 yards.

Your 15 MOA base will serve you well. Don't worry, you're not missing anything not having a 20 MOA base. It will probably be useless at up to 600 yards. But at 700+ yards with an AR you'll be glad you have it. Good luck.
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