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Just back from the range a few days ago and to say that I'm pleased with my Grendel build would be an understatement. This build started after I picked up a used Sabre Defence 16" Grendel barrel, bolt, gas block, mags, and a couple boxes of Hornady Black ammo for a *very good* price! I have no idea how many rounds had been put through this bbl before I got it, but I know it had at least 2 prior owners.
Went shopping for other components last summer and ended up with an Aero upper receiver and a Seekins NOXs MLok freefloat handguard. Needless to say, I soon had much more in this upper than I originally intended. I already had a spare Bolt Carrier, charging handle, and scope, so I mated the upper with the old Sabre Defence 5.56 lower I already had.
left.jpgright.jpg
After a range trip last summer, I was severely disappointed. The gun would group a couple of shots, then start spreading them all over the paper. I put it away for a few months until I had time to work on it again. I was wondering if maybe the scope (not pictured) I had picked up in a trade had possibly some loose internal components. It's an old 1" Burris 4-12x R/A mini scope that has limited eye relief, but it should have been solid for testing purposes. As I got ready to remove it and the cheap Chinese cantilevered mount, I discovered the scope mount thru-bolts weren't tight on the Picatinny rail! I violated one of my own rules of always checking all screws & mounts for tightness before heading to the range! Tightened it up and took it to the range. After checking it at 50 yds with a couple of shots, I moved out to 100 yards and started adjusting the scope for zero. It was obvious it wanted to shoot:
3shot.jpgsighting2.jpg
Once I made my final adjustments, here is the final group. First shot (top) was immediately after adjusting the elevation and windage turrets. Last 4 shots are beside the dime. Using Hornady American Gunner bulk ammo from Sportsman's Warehouse. Rest was handguard laying on 1 sandbag atop a wooden 4x4 block. No sandbags or support in rear...just snugged up against my shoulder. These Sabre barrels can shoot!
last4.jpg
Went shopping for other components last summer and ended up with an Aero upper receiver and a Seekins NOXs MLok freefloat handguard. Needless to say, I soon had much more in this upper than I originally intended. I already had a spare Bolt Carrier, charging handle, and scope, so I mated the upper with the old Sabre Defence 5.56 lower I already had.
left.jpgright.jpg
After a range trip last summer, I was severely disappointed. The gun would group a couple of shots, then start spreading them all over the paper. I put it away for a few months until I had time to work on it again. I was wondering if maybe the scope (not pictured) I had picked up in a trade had possibly some loose internal components. It's an old 1" Burris 4-12x R/A mini scope that has limited eye relief, but it should have been solid for testing purposes. As I got ready to remove it and the cheap Chinese cantilevered mount, I discovered the scope mount thru-bolts weren't tight on the Picatinny rail! I violated one of my own rules of always checking all screws & mounts for tightness before heading to the range! Tightened it up and took it to the range. After checking it at 50 yds with a couple of shots, I moved out to 100 yards and started adjusting the scope for zero. It was obvious it wanted to shoot:
3shot.jpgsighting2.jpg
Once I made my final adjustments, here is the final group. First shot (top) was immediately after adjusting the elevation and windage turrets. Last 4 shots are beside the dime. Using Hornady American Gunner bulk ammo from Sportsman's Warehouse. Rest was handguard laying on 1 sandbag atop a wooden 4x4 block. No sandbags or support in rear...just snugged up against my shoulder. These Sabre barrels can shoot!
last4.jpg
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