6.5 grendel...

Holycity73

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After a hiccup with the original upper and a bad cerakote job screwing up my tolerances, this is the current configuration with the rebuilt upper and a Trijicon 5-20. The group is rounds 19-21. I expect the precision to increase as break in is completed. Also, I will be swapping out the CMC drop in unit for a Geiselle national match.
 

mjkten

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I just bought a stripped lower from PSA that I really didn't need. (No Step on Snek). 6.5 Grendel is one possible destination for it. But I think I'll need better than PSA parts to shoot those kind of groups. What barrel, etc?
 

Holycity73

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I just bought a stripped lower from PSA that I really didn't need. (No Step on Snek). 6.5 Grendel is one possible destination for it. But I think I'll need better than PSA parts to shoot those kind of groups. What barrel, etc?
That’s a BSF barrel. I used an aero upper since my high speed custom job was wrecked by cerakote. Easy fix, but I think I’ll be keeping this spare in place for good. The rail is from Unbranded.
Trigger is a CMC
Brake is Surefire
Stock is MagPul
BCG is a proprietary custom job I got from a friend.
It also likes long walks on the beach and heavy metal music.
 

mjkten

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So as I would have guessed, the barrel is the heart of accuracy. Everything else is pretty standard stuff. Bolt matched to barrel?
 

Kmccord

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I have a Bushmaster Carbon 15 in 5.56 and have been using it for hog hunting, but wanted to buy a 6.5 Grendel upper for Hogs and Deer. I have been looking around and noticed Bear Creek Arsenal has a 24" barreled complete upper for 272.00, anybody on here have any experience with this upper?
 

RT2506

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In most anything you go with quality comes at a price. Anything from BCA is a crap shoot. My first 6.5 Grendel was built using a complete BCA 20" upper. It shot like a shotgun. Every shot was a flier. The crown looked like it had been done with a side grinder. Played phone tag with BCA for over 2 weeks trying to get to talk to the warrantee department which turned out to be just one woman who had been out with the flu. Finally got to talk to her and was emailed a UPS pick up ticket and I had to box up the upper and UPS it to them. It took about 10 days to get it back but I only live about 350 miles from them. They replaced the barrel. After break in cleaning process and with a little over 60 rounds down the bore it started to shoot consistently just under 1" five shots at 100 with certain handloads. It is picky about what it wants to shoot and it will not shoot factory Hornady 123 SST ammo under 1 3/4" at 100 yards nor any hand load I tried with the 123 SST bullet. While I was playing phone tag and doing the USP shuffle with BCA I decided to just build me another AR in 6.5 Grendel from the ground up. I used Anderson upper and lower frame. I got an Oden Works 18" barrel package with BCG, tunable gas block with the gas tube that goes with this intermediate length system. I use a POF drop in trigger with other parts mil-speck I got from either Joeboboutdoors.com or Primary Arms, can't remember. This rifle shoots but the barrel cost more than a whole BCA upper but again your get what you pay for. Just my experience.
 

MudRunner2005

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I have a Bushmaster Carbon 15 in 5.56 and have been using it for hog hunting, but wanted to buy a 6.5 Grendel upper for Hogs and Deer. I have been looking around and noticed Bear Creek Arsenal has a 24" barreled complete upper for 272.00, anybody on here have any experience with this upper?
From what i've heard, I'd steer-clear of BCA, and pickup something of higher quality.

At the very minimum, I'd get the Brownells/Satern barrel & bolt combo, and build your own upper. It's not hard.
 

Holycity73

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Just curious how Cerakote job screwed up the project?
Build up of cerakote inside of the upper. Tolerances were so tight prior that the uneven coating made it impossible to function properly. That one has since been blasted, recoated and is on another build.
 

CaptnC

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I have a Bushmaster Carbon 15 in 5.56 and have been using it for hog hunting, but wanted to buy a 6.5 Grendel upper for Hogs and Deer. I have been looking around and noticed Bear Creek Arsenal has a 24" barreled complete upper for 272.00, anybody on here have any experience with this upper?

I have been researching accuracy improvements for AR's and it seem that the true-ness of the front (contact area with the barrel) of the upper has a lot to do with consistent groups.

I have 4 of Bear Creek Arsenal's barrels that i have built out myself and the accuracy is very acceptable. BUT I have seen numerous people have issues with BCA complete uppers. So I'm very suspect of the quality of their upper. Not so much the barrels. I don't recall seeing anyone who built out their own upper, that had a problem.

If your not familiar with building your owe upper, I'd follow the recommendation of guys like MudRunner2005
 

762x51

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Jan 8, 2016
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NC
i used a BCA barrel for my grendel. i used a .223 wylde barrel from them for a pistol build, so i thought i'd try this one. it's shooting about 2 moa @ 100 right now. i've only got 20 rounds for it so hopefully it will tighten up as i shoot it. i was aware of the issues prior to buying it, but BCA is about 45 minutes from me and i will drive down there if i have a problem,.
 

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