Re: 5.56 Question.
Excellent point GH. some AR lowers are stamped '5.56' or 'multi', whereas they could be fit with a .223 target barrel.
It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze.
The latest caliber or gear is no substitute for experience and skill. Rifles and cartridges don't make hits -- shooters do.
Fact of life:
After Monday and Tuesday, even the calendar says WTF!