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Discussion Starter #1
After driving out west last month to shoot prairie dogs I started feeling guilty about not giving the 6mmAR a chance to prove itself on varmints. My 6XC was knocking them dead so that's mainly what we shot. I didn't break out the 6AR until the last few minutes of the last day and then only shot it at various targets scattered around the dog town.

Last Friday I hit the range to make sure the rifle was properly sighted in.....Nope, it wasn't.....had to make a few adjustment as you can see in the pic.....then I shot the 5 shot group in the upper right target....



The results speak for themselves. Not bad shooting off the back of a pickup.

I started out hoping that the rifle would shoot the heavy bullets well but the more I shoot it the more it's telling me that in spite of a 1-8 twist the lighter bullets are going to be the way to go accuracy wise. Which is fine by me the more I think about it. That little case isn't even going to come close to what my 6XC can do but if I shoot the lighter bullets at a higher velocity I'll still have a great 300-400 yard rifle.
 

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Gotta love any AR with a 6mm bore. I gotta ask a question, if you don't mind. I have an AR chambered in 6x 45 or the 223 simply necked up to 6mm. It's a one hole shooter with several powders under the 70gr Speer bullet. I'm getting just a hair over 3100'ps out of it. The heavy weight barrel is a 1:8" twist. The question, why did you go to the 6mmAR rather than the much simpler 6x 45? I'm not totally familiar with your round so excuse the ignorance.
 

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Discussion Starter #4
Gotta love any AR with a 6mm bore. I gotta ask a question, if you don't mind. I have an AR chambered in 6x 45 or the 223 simply necked up to 6mm. It's a one hole shooter with several powders under the 70gr Speer bullet. I'm getting just a hair over 3100'ps out of it. The heavy weight barrel is a 1:8" twist. The question, why did you go to the 6mmAR rather than the much simpler 6x 45? I'm not totally familiar with your round so excuse the ignorance.
Good question. There was only one reason.....seating depth. As I mentioned I wanted it to shoot the heavier bullets but am getting such good results with the light bullets that I'm extremely happy with the performance and don't really want to screw it up.....:). 6mmAR with cartridges loaded to magazine length with the big 6mm bullets do not interfere with powder capacity for the most part.

If I was going to shoot just the lightweights the 6x45 would have been my choice.

.....one other reason I guess.....a deal that was too good to pass up came about at just the right time. I was just getting into the 6.5 Grendel when I started reading about the 6mm version. Lo and behold an upper pops up for sale that was just about brand new and less than half the price of a new one. Ever since then my 6.5 Grendel has been pretty much ignored. The little 6mmAR is the real deal. If it can shoot like that for me then I would imagine someone with some real skill could kick some butt with this little guy.
 

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Zeus just to make sure I understand - are you considering 75gr bullets "light" for caliber? Are you going to test any 62/58gr bullets? If it were me I probably would not...it's hard to improve on a one hole shooter. :D
 

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Zeus just to make sure I understand - are you considering 75gr bullets "light" for caliber? Are you going to test any 62/58gr bullets? If it were me I probably would not...it's hard to improve on a one hole shooter. :D
For the 6mm I consider the 75 grain bullets to be pretty light. I've got some lighter ones to try....if I want to. But when I saw how well it shot the Vmax I bought a whole sleeve of them!
 

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6mmar

I have had a 6mmar for about 5 years now and it shoots very good, with just about every bullet I have tried. Shot chuckie and chico at 800yds on Dasher D omes (Birdogs) range.
 
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