5.56 vs .223 – What You Know May Be Wrong

Photo Credit: LuckyGunner.com

The differences between .223 Remington and 5.56mm NATO have been hashed out many times on the internet. Unfortunately, many of the “facts” that are often thrown around are simply what someone has heard from someone else, leading to a lot of misinformation being accepted as gospel.

Paul William from Knoxville, Tennessee, has done some extensive research on this topic with pressure testing on a wide range of .223/5.56mm ammunition.

You can find his report on LuckyGunner.com.