What's with all the new calibers for the AR?

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No, I was just comparing calibers closer to the 30 Rem in performance. While the 7.62x39 is almost identical in performance it was not a new caliber designed with the AR in mind.
 
All I know is that I want an SBR in 300 AAC real bad.
Yeah, if I do my .300 BO build, I will have to post it in the handgun forum :D

Mags, the .30 Rem was Remington's too late response to the .30-30 Win, the quintessential hunting cartridge of the century. Today, there are a great many people attracted to today's modern rifle and manufacturers want to meet that demand. Whether for shooting, hunting, SD, or recreation, AR business seems to be doing well.
 
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I would take the plunge with one of these calibers but just like with the 30 Rem you can't go to Wal-Mart and pick up a box of any of the AR specific cartridges other than 5.56.
Ah come on, live a little. There's a vast world of shooting bliss well beyond the sporting goods counter at Walmart.
 
You are correct sir. I do handload but I'm just not in a situation right now to get another oddball caliber.
 
esheato said:
All I know is that I want an SBR in 300 AAC real bad.

Ditto. I've been holding off on my 10" AAC Noveske build because of lack of commercial ammunition. I reload, but I want the rifle for work and I can only use factory Federal Tactical or Hornady TAP for work. No use building the rifle if I have no use for it. Maybe next year...
 
Well, I've been buying 6.8SPC off the shelf at Academy this year. And there's about 3 dozen makers of 6.8 out there, plus a large number of ammo retailers who sell direct over the internet and the truck delivers to your front door.

Of course, you have to plan ahead, and not suddenly remember you are out of ammo when picking up a gallon of milk and video on Friday date night. If BoxMart is your only source of ammo, that means generally buying stuff that's at least 20 years old since it's introduction. The firearms buyers at those places are the most hidebound conservatives ever seen, it's got to have a longstanding sales history with Elmer for a decade before they will make room in their limited locked case. What's in there is guaranteed profit makers, not leading edge alternative calbers for firearms they refuse to stock.

You shouldn't expect to see Aimpoints in clamshell packaging hanging on the hook, either.

It'll be years before .300 Whisper/BLK is stocked, too. It's been kicking around since the '80's when frustrated AR owners weren't allowed in main battle rifle matches because of a .30 cal restriction. What's interesting is the sudden push by Remington. In the last few years, the offered the 6.8SPC, the .30RAR, and now the .300 BLK Whisper copy.

Track record? The 6.8SPC took off and made #1 AR alternate caliber once it went viral with other companies willing to correct a small error. The .30RAR uses a special bolt and reputedly a different upper, it's not just another alternate, it's a different gun, like the AR10. Sales are less than staggering, nobody is buying into a single proprietary design, just like AR10's can't swap uppers, lowers, or some parts because different makers tweaked a non military non standardized design.

The .300? Found that cheap plinker ammo on the shelf yet? It's promised, but it's going to take a few years before it reaches being as available as 6.8. The focus on running it subsonic and suppressed is counterproductive, when the hunting market needs to see field performance. That's the MASS market that pays to get the stuff and makes it show up on the shelf.

Like at Academy. It may be 115gr OTP Remington green box, but it's there.
 
300 Whisper out of a 16" carbine loaded with H-110 and 150gr Ballistic Tips does fine on deer.
 
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