Originally Posted By: BubbaChickenI have been toying with this particular thought and something has come to mind. Generally full power loads for the AR in 5.56 are considered to be a little hot in milsurp ammo, and full pressure commercial ammo on the shelf is safe to fire in any AR chambered for it. Therefore, why would one gun that uses the same loads be less safe than the other if both are in good repair? Overloading the ammo would be indicated as the only variable that would cause a problem if the ammunition is correctly loaded, as it should be able to function in ANY correctly chambered weapon that is in good repair!
Mil-surp ammunition is not hot.
They are both loaded to the same pressures - it's just that they measure the presures differently.
Military 5.56 and commercial 223 are interchangeable in bolt and gas guns, with no problems - about a eleventy billion rounds fired are proof of this.
