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6bra vs 6arc

6mm ARC would make a fantastic 300 yard and in cartridge. Mine ( a 40 Deg Shoulder) will shoot a 105gr class bullets at right around 2800fps just like my Standard 6BR rifles. its a very efficient little case that is as easy to tune as the 6BR family of cases, to me they are about the same having owned and shot them both.
Lapua 220 Russian cases formed to 6mm or 22 ARC. The new Starline brass is quite good as well.
This has been my experience so far. Wonderful little case. It was a great wild cat long long before Big Red stole the idea.
 
Rtheurer said:
6mm ARC would make a fantastic 300 yard and in cartridge. Mine ( a 40 Deg Shoulder) will shoot a 105gr class bullets at right around 2800fps just like my Standard 6BR rifles. its a very efficient little case that is as easy to tune as the 6BR family of cases, to me they are about the same having owned and shot them both.
Lapua 220 Russian cases formed to 6mm or 22 ARC. The new Starline brass is quite good as well.
This has been my experience so far. Wonderful little case. It was a great wild cat long long before Big Red stole the idea.
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Well damn it Russ, now I may have to spend some money :)
 
Heman said:
Well damn it Russ, now I may have to spend some money :)
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If it were mine, I'd go with bullets in the 87-95gr class for anything inside of say 800 yards. I don't expect many to believe me on that until they do the load work ups, then run the numbers for themselves, though. For 300 and in, I may even go lighter but I think that's a sweet spot weight wise, for accuracy/speed/drift. I have what I think are better choices but even a 90 berger bt is perty hard to beat at about 3050-3100 fps. Just find max pressures and nodes, then run the numbers for drift and drops and compare all out accuracy potential with various mid weight bullets vs heavies. BC is a bigger factor as distance increases and overall, not much of a factor at 300, IME. 300 is still an accuracy game, especially so with flags and even 600 leans that way.
 
Heman said:
What is your barrel length and what the is the bullet/velocity your getting. Maybe you'll convince me to do one.
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Described it back in post #10, but once again. Savage model 110 action with stock Accutrigger, Shilen Match Select 28", 4 groove, Bull profile. Boyd's At-One Thumbhole stock, Athlon Argos 10-40X56 glass. Shooting a 105gr Berger Hybrid over 28.8gr LVR with Rem 705 primers and Starline brass. Running at about 2780fps.

I am by no means claiming this is the greatest, end-all be-all, but it was inexpensive to put together, I can get decent brass and again it is competitive at what we are doing. If I had to shoot out to 500/600yds I would probably be looking for something else.
 
gunsandgunsmithing said:
If it were mine, I'd go with bullets in the 87-95gr class for anything inside of say 800 yards. I don't expect many to believe me on that until they do the load work ups, then run the numbers for themselves,
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gunsandgunsmithing said:
300 is still an accuracy game, especially so with flags and even 600 leans that way.
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I have read your thoughts on this a few times previously and tend to agree with that thinking. Though for me time was short to get a load developed for this rifle to use in our league.

Before I changed barrels I tried some 87gr VMAX with the array of powders I have and they shot so-so.After I put the Shilen barrel on I tried some Berger 95gr and they showed great signs. Once I am finished with this league I intend to investigate the 95's more.

Any lighter than the 87's and then it's getting back to the 6PPC range in my opinion.
 
I saw these discussions coming the first time that I saw that the 6ARC was adopted for the DOD special forces.

The 6ARC was developed for a Special Purpise Rifle/Designated Marksman Rife as an improvement over the 5.56x45 in the AR/M16 platform PERIOD.

From my experiance it has achieved its goal, in short barrels, (11" to 16") or up to 20" the rifle, cartridge combination outperforms the same barrel lengths chambered in 5.56x45.

I have a 16" AR15 in 6 ARC that out performs my 20" A2 HBAR AR15 in 5.56x45.

This spring I'm loading and practicing using the LPVO as detachable and iron sights developing my processes. Since the pressures are low 52,000 PSI, I expect long barrel and rifle life.

As I said from my experiance the combination in a 16" rifle is better than any short barreled self loading configuration since the M1/M2 30 Carbine, including the M4 in 5.56x45 as it has equal end of muzzle range as well as significantly improved 600+yard performance.

Use it as designed is my advice.
 
As a PPC and a BR owner It amazes me how the rifle and ammo makers have snubbed the BR all these yrs. the BR and all its wildcats confirm its greatness and the fact the PRS competitors prove its greatness every meet they compete in. The ARC appears to be another great cartridge being promoted with huge dollars and commercial advertising to skip over the BR and try to gain commercial success for Hornady and their mass marketing machine. I know I have way to many dollars in dies and equipment for the BR cartridge and believe I will stay with it as spending the money for good dies and brass isnt really worth 50 fps for me. But those of you wanting to try it I wish all the good luck and one hole groups you can get!
 
mudman said:
As a PPC and a BR owner It amazes me how the rifle and ammo makers have snubbed the BR all these yrs. the BR and all its wildcats confirm its greatness and the fact the PRS competitors prove its greatness every meet they compete in. The ARC appears to be another great cartridge being promoted with huge dollars and commercial advertising to skip over the BR and try to gain commercial success for Hornady and their mass marketing machine. I know I have way to many dollars in dies and equipment for the BR cartridge and believe I will stay with it as spending the money for good dies and brass isnt really worth 50 fps for me. But those of you wanting to try it I wish all the good luck and one hole groups you can get!
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I don't see any large scale promotion of the 6ARC by Hornady, there were things during the release but I've not seen much or any since except on forums.

Hornady in my opinion attempted to generate civilian sales to generate some move volume as the special forces guys don't but 100,000 rifles.
 
LVLAaron said:
This might have something to do with it. I was interested in it when it first came out, to use in the AR Tactical class instead of 223.

Hornady's New 6mm ARC

Hornady's New 6mm ARC
www.whiteoakarmament.com www.whiteoakarmament.com


You really need a very expensive bolt to run it long term.
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Yes. If the goal is to use this cartridge in an ar platform rifle, the platform needs changes. The cartridge is fine but it may be time for a new AR variant that can reliably support it at pressures that allow it to be an actual improvement of significance. Great cartridge but is severely throttled back in an ar15
 
LVLAaron said:
This might have something to do with it. I was interested in it when it first came out, to use in the AR Tactical class instead of 223.

Hornady's New 6mm ARC

Hornady's New 6mm ARC
www.whiteoakarmament.com www.whiteoakarmament.com


You really need a very expensive bolt to run it long term.
Click to expand...
Hornady confirmed by my feelings by limiting the new cartridge to 52,000 PSI max pressure. At that pressure bolts and barrel extensions should last a long time.

Just like anything else, it wears/fails/EOSL faster if you hot rod it.
 
SteveOak said:
Hornady confirmed by my feelings by limiting the new cartridge to 52,000 PSI max pressure. At that pressure bolts and barrel extensions should last a long time.

Just like anything else, it wears/fails/EOSL faster if you hot rod it.
Click to expand...

That was kind of my take on the WOA statement: because shooters are stupid and load too hot, we're not going to make barrels in this caliber. WTF?!?
 
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