5.56 NATO vs. .223

[justbill]

I'm in complete agreement. My RRA Entry Tactical is also chambered for 5.56mm. I just wish I had the option for a slower than 1-in-9" twist from the manufacturer.

[DonWorsham]

Mine is 1/7 twist.

[wisconsin]

Its a good think I'm on this forum, because just when I think I've got a handle on this issue. I begin to relize I really don't know squat about choosing a caliber/proper rate of twist for the AR I want. Keep up the info, its much appreciate.

[TexGun]

Well, i guess that clears it up for me.  Guess i'm going for 5.56 so I can run either. 

[justbill]

Its a good think I'm on this forum, because just when I think I've got a handle on this issue. I begin to relize I really don't know squat about choosing a caliber/proper rate of twist for the AR I want. Keep up the info, its much appreciate.

As a rule of thumb and assuming 5.56 NATO/.223 Remington, a 1-in-9" twist will be fine if the majority of loads you use are 62-grains or less. If you want to go heavier in bullet weight, you'll want a slower twist like Don's 1-in-7" barrel. This is also the same twist used in the current generation of M16's and M4's. (The military first went to 1-in-7 to stabilize the tracer cartridge using a rather long bullet. It also works great for the 75- and 77-grain BTHP loads that exhibit excellent long-range accuracy. Specialized military troops using these loads in Afghanistan and Iraq also report enhanced lethality compared to standard M855 Ball.)

[Sponsor]

[Bill Stryker]

My RRA has a 1 in 8 twist. They make them in several flavors. If you want a slower twist just tell them when you place the order.

[justbill]

When I purchased my M4gery they only offered 1-in-9. You can now get a 1-in-7 with the carbines, 1-in-8 Wylde-chambered barrels in rifles.

[TexGun]

Based on all of this good feedback and the way the way my fellow Texans are turning out for the democrats, i'm placing my order tomorrow!!!

[justbill]

That's not a bad idea at all. I foresee some truly dark days ahead as gun owners if either Clinton or Obama is elected. (Not that McCain is a 2nd Amendment stalwart but he'd certainly be the runaway favorite solely based on gun issues.) Funds don't allow me to purchase another fully assembled AR right now but I will be getting a stripped lower receiver or two as a "just in case" hedge against any early attempts to ban EBR's.

BTW, may I ask which specific AR models you're considering?

[TexGun]

I'm really not sure right now.  Based on some feedback from some other friends I'm leaning towards a Busmaster or S&W(Stag).  Any advice on specific models?  My big requirements are, adjustable stock and removeable carry handle.  I'm a little old school, so I'm not really looking at any with the carbon fiber receivers.