Black Hills 77 grain 223 vs 5.56

[Triad]

Since Black Hills "declassified" the 5.56mm 77OTM (Mk262 mod1) and allowed its commercial sale, I get the question about the difference between 223 and 5.56mm quite often.

Black Hills no longer loads different bullets for the 77gr in 223/556, EVERYTHING is the 77gr Sierra SMK with cannelure(as used in the Mk262 mod1). That settles the bullet question.

Here are the listed specs as given out today by Black Hills:

223 2750fps from a 24" barrel
556 2750fps from a 20" barrel

Just remember not to shoot 556 ammo out of a 223 chamber.

Black Hills NEW 5.56 77gr OTM (Mk 262 mod1)
Black Hills NEW 223 77gr SMK
Black Hills REMANUFACTURED 223 77gr SMK

BTW, Black Hills now also offers the 69 Sierra in 556 as well.

http://www.triadtactical.com/Black-Hills-New-5.56mm-69gr-Sierra-OTM-Open-Tip-Match.html

 

[mako993]

Re: Black Hills 77 grain 223 vs 5.56

I just picked up some Black Hills 5.56 77gr OTM from Midway. I didn't see your cheaper prices until after the fact Steve

Next time I'll get it from you guys. I'm looking forward to trying it out in my AR. It's 18" 1:7, should work pretty well.

 

[mako993]

Re: Black Hills 77 grain 223 vs 5.56

Correction, it's a 16" barrel, not 18".

 

[BigJohn141]

Re: Black Hills 77 grain 223 vs 5.56

After I finish testing a few more rounds I might just pick up a case of the 5.56, it shoots really well out of my 20" AR out to 800 yards.

 

[mako993]

Re: Black Hills 77 grain 223 vs 5.56

Nice range on that Big John. What is yours zeroed at? Mine's set at 50 yards, but I haven't shot it nearly past that yet even.

 

[BigJohn141]

Re: Black Hills 77 grain 223 vs 5.56

I run a 100 yard zero. I am running close to the bottom of the PST so I dont want to push it, if I had to shoot under 100 I can just hold under some.

 

[mako993]

Re: Black Hills 77 grain 223 vs 5.56

I've only shot 223 out of mine so far. Going to send some 5.56 through it soon.