5.56/.223 Accuracy

[jazaman]

Ok, Now that we are clear that 5.56 should not be shot out of .223 chambered rifles, where can someone with a 5.56 buy ammo (preferably in large quantities and heavy bullet weights)? I never see it for sale anywhere.

i have created a new thread to adress that question; hopefully , someone will share a source, if there is such a thing... search for ''5.56''

 

[Cerendrad]

lmt

thx, I actually called the guys at LMT and they said the heavier the better. They use 77 Gr. Sierra MatchKing quite a bit, but that's .223 and I don't think is available here and must be expensive (I could be wrong).

 

[ESQ]

Hornady 5.56 75gr TAP where/when you can find it. But I find the powder they use doesn't work well in my 10.5 LMT barrel. Works wonderfully in my 14.5 LMT AR and 20 inch 1:7 twist SAN.

You will want 1:7 or 1:8 twist for the heavy rounds. Under 69gr, you should be ok with a 1:9.

 

[j_san]

Hornady 5.56 75gr TAP where/when you can find it. But I find the powder they use doesn't work well in my 10.5 LMT barrel. Works wonderfully in my 14.5 LMT AR and 20 inch 1:7 twist SAN.

You will want 1:7 or 1:8 twist for the heavy rounds. Under 69gr, you should be ok with a 1:9.

Thanks for the heads up. I have recently began reloading, I will try something in 62gr. much appreciated.

 

[cyclone]

Is the AR-180b chambered in 5.56 or 223?

Mine says 5.56mm on the side....

Edit: Should have seen fnrob's post first!

BTW, I had a 3-12 Fitco scope on my AR-180B today and, at 50 yards, grouped about a loonie (guestimated ) with that "tactical" American Eagle .223 ammo.......so, if little 'ol me could manage to work that, I'm very sure others can do far better with their rifles!

 

[windage]

Don't a lot of Black rifle manufacturers stamp .223 instead of 5.56 on the side for American Export? Robinson's XCR for example?

 

[mudgunner49]

Your .223 is only a chamber finishing reamer away from 5.56...

 

[.32 Spl]

Ok, Now that we are clear that 5.56 should not be shot out of .223 chambered rifles, where can someone with a 5.56 buy ammo (preferably in large quantities and heavy bullet weights)? I never see it for sale anywhere.

http://www.marstar.ca/ammo-etc/am-rifle.shtm

$275.99 for 200 rounds.

 

[Guill]

delete

 

[fnrob]

Mine says 5.56mm on the side....

Edit: Should have seen fnrob's post first!

BTW, I had a 3-12 Fitco scope on my AR-180B today and, at 50 yards, grouped about a loonie (guestimated ) with that "tactical" American Eagle .223 ammo.......so, if little 'ol me could manage to work that, I'm very sure others can do far better with their rifles!

Hey, cyclone.

Is that with the RRA trigger installed, or have you gotten one for it yet?