Sorry I didn't post an AUTHORITATAVE source. I was at work and am only allowed access to certain websites. This is from
www.saami.org under the unsafe combinations tab. Scroll down till you see .223 remington in theleft hand column and then look to see what it says on the right. If thats not good enough shoot till your hearts content. I'm not going to.
Sincerly
Joe Blow
In Rifle Chambered For
Do Not Use These Cartridges
6mm Remington (244 Rem)
250 Savage
7.62x39
6.5mm Remington Magnum
300 Savage
6.5x55 Swedish
7mm BR Remington
7.62x39
300 Savage
6.5x06 A-Square
7.62x39
6.5x08 A-Square
7.62x39
7mm Express Remington
7mm Mauser (7x57)
270 Winchester
30 Remington
30-30 Winchester
300 Savage
308 Winchester
32 Remington
375 Winchester
38-55 Winchester
7mm Mauser (7x57)
7.62x39
300 Savage
30-30 Win
7mm Remington Magnum
7mm Express Remington
7mmMauser (7x57)
7mm Weatherby Magnum
8mm Mauser
7mm Remington Magnum
270 Winchester
280 Remington
303 British
308 Winchester
35 Remington
350 Remington Magnum
375 Winchester
38-55 Winchester
7mm Shooting Times Westerner
30-06 Springfield
30-40 Krag
350 Remington
300 Winchester Magnum
7mm Weatherby Magnum
7mm Express Remington
7mm Mauser (7x57)
7mm Remington Magnum
8mm Mauser
270 Winchester
280 Remington
303 British
308 Winchester
35 Remington
350 Remington Magnum
375 Winchester
38-55 Winchester
7mm-08 Remington
7.62x39
8mm Mauser (8x57)
7mm Mauser (7x57)
35 Remington
8mm Remington Magnum
338 Winchester Magnum
350 Remington Magnum
358 Norma Magnum
375 Winchester
38-55 Winchester
17 Remington
221 Remington Fireball
30 Carbine
17-223 Remington
17 Remington
221 Remington Fireball
30 Carbine
220 Swift
7.62x39
223 Remington
5.56mm Military
222 Remington
30 Carbine
240 Weatherby Magnum
220 Swift