You can put .223 into a 5.56mm but not the other way around due to pressure issues
rem=remington
No, this is a dedicated .223 Remington chamber, and that's the only ammunition which should be used with this rifle. While the two rounds are matching in dimensions, they are not identical.
Any firearm chambered for .223 or 5.56mm
100-350
I have had good success with Federal rifle ammo.
1 in 9"
Twist is 1:12
no!!!!!!!
No, they are not interchangeable.
No. Only shhot was is printed on your barrel.
ar-15
1-12"