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Hello all, I have been lurking around the forum for a while gathering info as I caught the Grendel bug earlier this year. I have a Savage in 6.5 Creedmoor that fires factory Hornady Amax ammo to the tun of 1/2 MOA and better and it gave me the idea that I wanted to have a semi auto platform that could deliver similar results.
My first attempt was an AR stoner barrel from Midway. It shot around 1MOA with the occasional sub group with factory 123 Amax ammo. This was okay, but I wanted more. The premise of me buiding this rifle was that I did not want to have to hadload. I handload for all of my rifles but some times I dont have the time and I run out of supplies like powder which is a little harder to come by now.
So I tried a black hole weaponry barrel and boy am I happy with the results. I did the break in procedure listed on their website and then I made a second trip to the range for groups. My first groups with the 123 Amax were around 3/4 to 1 MOA and then I pulled out a box of 123 grain SSTs. The SSTs shot phenomenal. I shot 6 shots into a .670" group with my first group. Then my second group was 5 shots .310" !!!! Yes you are reading that correctly. That is the best 5 shot group I have ever shot and I have quite a few small groups with various precision rifles that I own. I proceed to finish out the 20 round box with a .710" 5 shot group and I took the last 4 shots and shot 4 separate bulls eyes on 4 circle targets. I am starting to wonder if I got a magical box of SSTs, so I ordered 5 more boxes.
The barrel is an 18" 264 LBC with a 1x9 twist that I bought from Surplus Ammo. Is anyone else getting these kind of results with these barrels? The attached pictures are my two best groups.
My first attempt was an AR stoner barrel from Midway. It shot around 1MOA with the occasional sub group with factory 123 Amax ammo. This was okay, but I wanted more. The premise of me buiding this rifle was that I did not want to have to hadload. I handload for all of my rifles but some times I dont have the time and I run out of supplies like powder which is a little harder to come by now.
So I tried a black hole weaponry barrel and boy am I happy with the results. I did the break in procedure listed on their website and then I made a second trip to the range for groups. My first groups with the 123 Amax were around 3/4 to 1 MOA and then I pulled out a box of 123 grain SSTs. The SSTs shot phenomenal. I shot 6 shots into a .670" group with my first group. Then my second group was 5 shots .310" !!!! Yes you are reading that correctly. That is the best 5 shot group I have ever shot and I have quite a few small groups with various precision rifles that I own. I proceed to finish out the 20 round box with a .710" 5 shot group and I took the last 4 shots and shot 4 separate bulls eyes on 4 circle targets. I am starting to wonder if I got a magical box of SSTs, so I ordered 5 more boxes.
The barrel is an 18" 264 LBC with a 1x9 twist that I bought from Surplus Ammo. Is anyone else getting these kind of results with these barrels? The attached pictures are my two best groups.
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