You are Unregistered, please register to use all of the features of!    

Firearm & Gun Forum - > Gear & Accessories > Optics & Mounts >

15 MOA base

LinkBack Thread Tools Display Modes
Old 05-08-2009, 01:32 PM   #11
Feedback Score: 0 reviews
Join Date: Mar 2008
Location: I see you, and you will not know when I will strike
Posts: 24,301
Liked 3516 Times on 1621 Posts
Likes Given: 3590


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.

Dillinger is offline  
Reply With Quote
Old 09-17-2016, 06:18 PM   #12
Feedback Score: 0 reviews
Join Date: Sep 2016
Posts: 15
Liked 3 Times on 3 Posts
Likes Given: 5

Default Optic Base probably critical beyond 600 yards

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.
ART005 is offline  
Reply With Quote

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Base mounts bessemerbob Optics & Mounts 5 04-24-2009 12:45 AM
Looking for a good base model AR-15 indyfan AR-15 Discussion 4 02-17-2009 11:02 AM
What's in the Knowledge Base?? Dillinger The Club House 3 08-14-2008 01:29 PM