WHICH rifle? There is more than one type made in this caliber.
it is a one in 12" rate of twist good for up to 55 gr. bullets may stabalize some 60 gr but heavier bullets may suffer in accuracy..... Turns out that ALL H&R/NEF .223 barrels made will be 1-9 twist starting in 2006. This is great news to those of us who want an inexpencive .223 rifle that can shoot heavy bullets.
The correct bullets for a 223 WSSM are .224.
In a package
A rifle with a 5.56x45 chamber can utilise .223 Remington cartridges. A rifle with a dedicated .223 Remington chamber cannot accommodate 5.56x45 cartridges. A rifle with a .223 Wylde chamber can accommodate .223 Wylde, .223 Remington, and 5.56x45, but neither a rifle with a 5.56x45 or a .223 Remington chamber can accommodate the .223 Wylde cartridge.
Depends on if you are talking semi or full auto.
3
.223 Remington can be cycled in a 5.56x45 rifle; 5.56x45 should not be cycled in a .223 Remington firearm.
no
Made by many companies in many different configurations
Anywhere from one to 100, depending on what exactly the rifle is.
NO the .223 is a totaly diffrent round than the .223 WSSM
It all depends on the model.