Well here's my $0.02. The Les Baer is guaranteed 1/2MOA and the MV should be around 1 MOA or better given the reputation of the makers. Redshooter is right, you have to take the time to work up your loads. I my experience with precision AR15s, there are two things to consider, given that the rifle(s) are capable of the accuracy advertised. The first is the shooter. As mentioned before, it's not easy to consistently shoot small groups. By the pictures, it appears that you have a decent setup with front rest and rear bag. I assume that the shooting table is solid as well. Then it comes down to technique. This includes follow-through when breaking the shot, dialing out parallax on the scope, consistent cheek pressure, etc. The second thing is that of load development. ARs are usually quite finicky in getting the right powder charge. I usually create 8 X 3 round load groups for a given bullet and powder to find the load that gives me the smallest group. I increase the load by 0.2gr from one goup to the next. For instance, 77gr Sierra MK and Varget. I make up 8 loads starting at 23.8gr and up to 25.2gr. When I shoot them, I check for pressure signs when I get to the higher loads. You'll likely find that there are at least two loads that are smaller than the others in the series. One on the low end and one on the high end. You'll also see that the loads just before and after are progressively larger.
I do the same thing all over again for the same bullet but with two or three different powders. After all that I start all over again using the same method but with different bullets. By keeping it to groups of three, you minimize the number of loads to test. Once I've found a few load combinations that give me the accuracy I want, I load up these combinations in two groups of 5 and try them again. You'll find that your groups will be slightly larger but still very tight. This is all part of the fun of precision shooting. I've found that sticking to this procedure has worked well for me in getting accurate loads for my precision AR15.