AR10 build

Re: AR10 build

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ORD</div><div class="ubbcode-body">Best caliber for what?!?

Long range performance?
Short/Mid Range?
Big game?
Small game?
Etc.? </div></div>

^This. What do you plan on using this rig for?
 
Re: AR10 build

The 308/7.62x51 is hard to beat in the AR-10 whether you reload or not. It is a tried and true performer for long range target out to 800yds (and further depending on your ammo and skill set).

If you do reload, there are a host of different offerings available these days that offer a ballistic edge over the 308, especially the WSM cartridges including 6.5WSM, 7WSM, 300WSM, etc. The 6.5CM is also a great round that will work in the AR-10 platform. However, none of those rounds really have much in the way or commercial ammo offerings that will allow you to get the most out of the cartridge in the AR-10, so you have to reload if you go down that road.
 
Re: AR10 build

For long range or hunting?

6.5x47 Lapua would be IMO one of the best choices in 308 length.
Not sure about availability, but at least one 7.62 AR manufacturer has offered it in Europe over year ago.

There is nothing wrong with 308- but since you asked I presume 308 is not good enough...better start reloading...
 
Re: AR10 build

.308 and save yourself the head ach. All the guess work is already done nothing to find out ballistic wise. This is just MHO because yes the 6.5s are the ballistic dream. But Ammo on the shelf, load data out the ass and dope for any range and any barrel length is everywhere. If this is not your first AR10 than go with something else for fun. Now I just got my AR10 finally Yesterday and this is what I asked myself before the perchase.
 
Re: AR10 build

How ablout a 7-08? Same case (basically), better BC bullets, good performer, loaded ammo available, should feed the same with no mag issues. I know it's not the ultimate SA round, but IMO a step above the .308 and easy to deal with.

ETA: Armalite offers one in .338 Fed.