New 6.5 Creedmoor AR Upper

44caliberkid · May 13, 2019, 04:03 PM

I took a fresh built 6.5 Creedmoor upper out today for initial testing. It has an AR Performance barrel and JP Enterprises free float tube. I haven't put on a flash hider or muzzel brake yet. It has a Superlative Arms adjustable gas block. Also a Vortex 4 x 12 scope. I was shooting SIG 140 grain Match. It took three shots to zero the scope, then a four round group. I had a 3 hole, 1/4 inch group with a called flyer for the fourth round. First few shots were ejecting about 2 o'clock, one adjustment of the Superlative block and they were popping out at 3 o'clock, traveling about 5 feet, and recoil was slightly reduced. I used my 308 lower for testing, but am building a dedicated lower for this one. I'm not a big fan of large frame AR's, too heavy, and this will be my last one. But this might be the most accurate rifle I have judged by group size. Guns are fun.

ed308 · May 14, 2019, 09:52 AM

I have that same barrel. Very accurate and would be perfect for hunting. But my groups opened up on the 4th or 5th shoot with that barrel.

Mobuck · May 17, 2019, 07:26 AM

Is that SA one of the "blow hole" bleed off blocks and are those different vs the SA blocks that work on .223?

May 13, 2019, 04:03 PM	#1
44caliberkid Senior Member Join Date: May 15, 2017 Location: Iowa Posts: 262	New 6.5 Creedmoor AR Upper I took a fresh built 6.5 Creedmoor upper out today for initial testing. It has an AR Performance barrel and JP Enterprises free float tube. I haven't put on a flash hider or muzzel brake yet. It has a Superlative Arms adjustable gas block. Also a Vortex 4 x 12 scope. I was shooting SIG 140 grain Match. It took three shots to zero the scope, then a four round group. I had a 3 hole, 1/4 inch group with a called flyer for the fourth round. First few shots were ejecting about 2 o'clock, one adjustment of the Superlative block and they were popping out at 3 o'clock, traveling about 5 feet, and recoil was slightly reduced. I used my 308 lower for testing, but am building a dedicated lower for this one. I'm not a big fan of large frame AR's, too heavy, and this will be my last one. But this might be the most accurate rifle I have judged by group size. Guns are fun.

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May 14, 2019, 09:52 AM	#2
ed308 Senior Member Join Date: November 5, 2016 Location: DFW, TX Posts: 935	I have that same barrel. Very accurate and would be perfect for hunting. But my groups opened up on the 4th or 5th shoot with that barrel.

May 17, 2019, 07:26 AM	#3
Mobuck Senior Member Join Date: February 2, 2010 Posts: 6,822	Is that SA one of the "blow hole" bleed off blocks and are those different vs the SA blocks that work on .223?