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Building first AR15

I ran over to the neighbors house and shot 5 quick rounds at a single target @ 100 yards. I didn't want to shoot more but I needed to do it quick so as not to alert anyon. I only had 20 rounds of this ammo and I didn't want to spend it all for the sake of proving a point. It the Hornady white box with red writing Match ammo. It loves the 120 grain ELD-M ammo. Now it may open up a bit after the barrel gets warm but this is from a cold bore and 4 follow up shots in quick succession. I will measure as soon as I cool down a bit. The first 2 went through the same hole. My other barrels from Rainier Arms were very close to this if not the same especially the .308 barrel I used in 2013 so consistency is good from barrel to barrel. Then again I might have just got lucky in this group but not by much. A buddy I built a 6 ARC for shoots as good if not better. I highly recommend them for good reason.

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The furthest point from the furthest point is .632 that without subtracting bullet diameter. To me the distance between the two furthest points I use as group size. I see people measuring from one round to the other and then measuring from the next round to the next round and just keep on going and they call that group size. I prefer just to State the two furthest points of the group. While that not be the correct way it leaves no doubt in round spread. Those guys will have six inches of total spread and go from round to round and then claim the average of all roads 1.5 inches between two and then 2 inches between the nest two. LOL No bueno!
 
The furthest point from the furthest point is .632 that without subtracting bullet diameter. To me the distance between the two furthest points I use as group size. I see people measuring from one round to the other and then measuring from the next round to the next round and just keep on going and they call that group size. I prefer just to State the two furthest points of the group. While that not be the correct way it leaves no doubt in round spread. Those guys will have six inches of total spread and go from round to round and then claim the average of all roads 1.5 inches between two and then 2 inches between the nest two. LOL No bueno!
Which is exactly why we go straight to you for the info.
 
Which is exactly why we go straight to you for the info.
I appreciate the sarcasm but you and I both know it's well under .632 moa. I'm just stating the distance between the two furthest points is .632. I'm willing to call it just under half MOA just to satisfy the anal enthusiast. LOL
 
Just heard back from their gunsmith. They sent me a return label to send in the complete upper and let him go through it and test fire it. So that’s where we are at this point. I’ll get it sent to them tomorrow and hopefully they’ll have it by Monday and sorted out by the end of next week. Can’t ask for better customer service than that!
When it comes to their Ultramatch barrels they don't play around. They say they will put their Ultramatch barrels up against anyone and win. I believe it. Right now a lot of thier Ultramatch barrels are only 400 bucks. That's a considerable amount lower than they use to be. I think I paid 525 for the .308 barrel I used and 465 plus tax and shipping for my 6.5 Creedmoor barrel. I have spent as much as 600 on a barrel and I have never been able to outshoot Rainier Arms Ultramatch barrels. I believe that for the money you can not buy a better barrel. At least that's been my experience. I am really wondering how it will shoot with Federal GMM Sierra OTM will shoot or Federal Gold metal match with Berger bullets also. So I still have some testing to do before I post all the results but it's going to be something outshoot those Hornady results.
 
When it comes to their Ultramatch barrels they don't play around. They say they will put their Ultramatch barrels up against anyone and win. I believe it. Right now a lot of thier Ultramatch barrels are only 400 bucks. That's a considerable amount lower than they use to be. I think I paid 525 for the .308 barrel I used and 465 plus tax and shipping for my 6.5 Creedmoor barrel. I have spent as much as 600 on a barrel and I have never been able to outshoot Rainier Arms Ultramatch barrels. I believe that for the money you can not buy a better barrel. At least that's been my experience. I am really wondering how it will shoot with Federal GMM Sierra OTM will shoot or Federal Gold metal match with Berger bullets also. So I still have some testing to do before I post all the results but it's going to be something outshoot those Hornady results.

It won’t be long and I’ll be building my first AR using the same lower as Alex, looking forward to gathering parts. After talking to Alex and seeing his experience I’m pretty sure I’ll be using one of their barrels in my build too, just for the CS experience alone.
 
It won’t be long and I’ll be building my first AR using the same lower as Alex, looking forward to gathering parts. After talking to Alex and seeing his experience I’m pretty sure I’ll be using one of their barrels in my build too, just for the CS experience alone.
So far they’ve been extremely generous to me. I’ll drop my upper off tomorrow at FedEx and hopefully they’ll have it by the end of the week
 
So far they’ve been extremely generous to me. I’ll drop my upper off tomorrow at FedEx and hopefully they’ll have it by the end of the week
They will go over it with a fine tooth comb. If nothing pops up they will put barrels on until they achieve the results they find acceptable. You can bet on that! 😁
 
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