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View Full Version : seeking advice on long range AR-15 upper compatible with BH 77gr 223 ammo


classical_buff
06-03-2012, 6:51 PM
Wanted to get some advice.

I was looking for some parts and found over 3k rounds of Black Hills 77 gr 223 ammo. (Some I purchased a few years ago and some I got through trades a few months ago. Misplaced them and forgot about them. I guess I am getting old.)

Sounds really cool right? Bunch of "lost" ammo that I found.
Here are some of the problems.

1. They are all moly. (1K is Blue box - remanufactured & 2k+ is Red box - new) All of my ARs, I have not used any moly ammo. I want to stick with either moly or non-moly with AR15 uppers.

2. With 77 gr bullets, I would need at least 1:8 or 1:7 twist rate.
Only AR15 upper that I have is SR15 w/ 16" barrel - which might work but I want to get an upper that can be used for dedicated long range shooting.

Any suggestions on what kind of uppers that I should be looking at:

IPSICK
06-03-2012, 8:00 PM
I've shot less than 0.5 moa at 200 yards with a JP15 using 77gr SMK. Not long range but pretty precise. Haven't had a chance to shoot longer distances with it.

Ahhnother8
06-03-2012, 8:09 PM
All of my ARs, I have not used any moly ammo. I want to stick with either moly or non-moly with AR15 uppers.

I want to get an upper that can be used for dedicated long range shooting.

Any suggestions on what kind of uppers that I should be looking at:

Mixing moly and bare does not matter.

White Oak Arms

neal0124
06-03-2012, 10:19 PM
Mixing moly and bare does not matter.

White Oak Arms

^^^This^^^

SuperSet
06-03-2012, 10:23 PM
As a followup to IPSC, I'd also recommend a good 1/7 stainless like JP, Noveske or White Oak. Treat those 77s like the Precious!

paratroop
06-03-2012, 10:35 PM
ill buy them! Ive got a 1/9 twist ss 20" barrel that eats those up all day long. 12" steel plate at 600 yards every time, so at least 2 moa. never hit paper that far, but im sure im pushing 1 moa when the winds not blowing too hard.

But seriously, I live right around the corner and Ill swing by and take those off your hands.

ExtremeX
06-03-2012, 10:42 PM
1:7 twist is really the best choice for that round, but 1:8 works fine too. I shoot it out of a 1:8 416 stainless barrel but I went with that twist rate because I cant afford to shoot 77gr match ammo all the time.

And thats a nice little batch of ammo to find... I wish I had that much match ammo. PM me if you want to sell some.