Gotta call bull shit. Everyone knows you can launch 556 rounds out of a Wylde chamber. “They” say not so much out of a .233 chamber. I’d like to see some data/tests on that chamber shooting 556.
On December 13, 2021 at 10:49 am, J. Smith said:
I run nothing but PWS, Wylde chambers with1-8 twist, metal, brass, .223, 5.56, 55g-75g and everything in between shoots great, no issues and accurate. 1-7 twists are bs, they suck, are always horribly inaccurate even with heavier bullets. Two most accurate are 1-12 with light bullets and 1-9 anywhoo. I recommend Wylde chambers.
On December 13, 2021 at 11:25 am, Bill said:
Personal opinion only. I don’t think it makes a whole lot of difference in a modern rifle. In a semi-auto, it may make a difference in reliability. The pressure curve in the barrel may not be where your gas system wants it. If you are reloading, any caliber can get you in trouble when you approach maximum loads.
On December 13, 2021 at 2:15 pm, Georgiaboy61 said:
The most-important differences between 5.56×45 NATO and .223 Remington lie in their intended uses, and the types/kinds of FA from which they will be fired.
When NATO standardized upon 5.56x45mm as its new service rifle cartridge in the 1980s, a technical data package was arrived at concerning its characteristics and manufacture. The idea was that any ammunition manufacturer in the alliance would be able to produce 5.56×45 to spec such that it could be used by any of the nations of the alliance and their forces without issue. As long as that 5.56×45 cartridge bore the cross inside a circle acceptance stamp, the soldier was good-to-go to resupply with it.
Given that the new M855/SS109 62-grain “green tip” cartridge had to be able to withstand firing from select-fire assault rifles, light machine guns and other weapons, the cases had to be stout-enough to withstand the additional heat, dirt, and wear-and-tear such weapons inflict upon the cartridge cases used for their ammo. Meaning stiffer, stronger and thus perhaps somewhat heavier than civilian counterparts such as .223 Remington.
Military-spec firing chambers and barrel throats are also usually more-generous than non-mil-spec. firearms, so that they’ll function even when somewhat fouled and/or dirty. The small loss in accuracy this sometimes entails is considered acceptable as a byproduct of increased durability and reliability.
Civilian-spec. .223 Remington brass ranges from mediocre/adequate to excellent, depending on the manufacturer. Since the upsurge in the popularity of “modern-sporting rifles” (or MSRs as the industry likes to call them), which have military-type chambers, civilian .223 Remington makers have had to deal with the possibility that their fare would be fired not just from someone’s bolt-action varmint rifle, but from an AR15-pattern MSR not all that different from a military-issue carbine or rifle. Consequently, most – not all – of them have tightened up Q.C. and designed their cases to withstand at least a degree of hard use.
Some commercial reloading outfits sort and reload by 5.56 or .223 Rem., but others see no need to do so, and so do not distinguish between them.
One final point: While there isn’t always much practical difference between 5.56 and .223, many manufacturers of firearms chambered in .223 Remington will void your warranty if you use 5.56 in that particular carbine or rifle. Know before you go….. do your due diligence, etc. on that score.
This article is filed under the category(s) Ammunition,AR-15s and was published December 12th, 2021 by Herschel Smith.
If you're interested in what else the The Captain's Journal has to say, you might try thumbing through the archives and visiting the main index, or; perhaps you would like to learn more about TCJ.
On December 12, 2021 at 11:20 pm, Brad said:
Gotta call bull shit. Everyone knows you can launch 556 rounds out of a Wylde chamber. “They” say not so much out of a .233 chamber. I’d like to see some data/tests on that chamber shooting 556.
On December 13, 2021 at 10:49 am, J. Smith said:
I run nothing but PWS, Wylde chambers with1-8 twist, metal, brass, .223, 5.56, 55g-75g and everything in between shoots great, no issues and accurate. 1-7 twists are bs, they suck, are always horribly inaccurate even with heavier bullets. Two most accurate are 1-12 with light bullets and 1-9 anywhoo. I recommend Wylde chambers.
On December 13, 2021 at 11:25 am, Bill said:
Personal opinion only. I don’t think it makes a whole lot of difference in a modern rifle. In a semi-auto, it may make a difference in reliability. The pressure curve in the barrel may not be where your gas system wants it. If you are reloading, any caliber can get you in trouble when you approach maximum loads.
On December 13, 2021 at 2:15 pm, Georgiaboy61 said:
The most-important differences between 5.56×45 NATO and .223 Remington lie in their intended uses, and the types/kinds of FA from which they will be fired.
When NATO standardized upon 5.56x45mm as its new service rifle cartridge in the 1980s, a technical data package was arrived at concerning its characteristics and manufacture. The idea was that any ammunition manufacturer in the alliance would be able to produce 5.56×45 to spec such that it could be used by any of the nations of the alliance and their forces without issue. As long as that 5.56×45 cartridge bore the cross inside a circle acceptance stamp, the soldier was good-to-go to resupply with it.
Given that the new M855/SS109 62-grain “green tip” cartridge had to be able to withstand firing from select-fire assault rifles, light machine guns and other weapons, the cases had to be stout-enough to withstand the additional heat, dirt, and wear-and-tear such weapons inflict upon the cartridge cases used for their ammo. Meaning stiffer, stronger and thus perhaps somewhat heavier than civilian counterparts such as .223 Remington.
Military-spec firing chambers and barrel throats are also usually more-generous than non-mil-spec. firearms, so that they’ll function even when somewhat fouled and/or dirty. The small loss in accuracy this sometimes entails is considered acceptable as a byproduct of increased durability and reliability.
Civilian-spec. .223 Remington brass ranges from mediocre/adequate to excellent, depending on the manufacturer. Since the upsurge in the popularity of “modern-sporting rifles” (or MSRs as the industry likes to call them), which have military-type chambers, civilian .223 Remington makers have had to deal with the possibility that their fare would be fired not just from someone’s bolt-action varmint rifle, but from an AR15-pattern MSR not all that different from a military-issue carbine or rifle. Consequently, most – not all – of them have tightened up Q.C. and designed their cases to withstand at least a degree of hard use.
Some commercial reloading outfits sort and reload by 5.56 or .223 Rem., but others see no need to do so, and so do not distinguish between them.
One final point: While there isn’t always much practical difference between 5.56 and .223, many manufacturers of firearms chambered in .223 Remington will void your warranty if you use 5.56 in that particular carbine or rifle. Know before you go….. do your due diligence, etc. on that score.