This raises more questions than it answers.
1. Why is there two sets of dimensions so close to each other?
2. Which is the better round to use? 223 in bolt and 5.56 in AR?
3. What is the accuracy difference?
4. Why is there no dies for 5.56 for purchase?
5. Since it takes more work by the mfg to make 5.56 shouldn't surplus ammo cost more than 223? (brass not steel)
6. How much longer or shorter is barrel life using one or the other?
Jim
1. Why is there two sets of dimensions so close to each other?
2. Which is the better round to use? 223 in bolt and 5.56 in AR?
3. What is the accuracy difference?
4. Why is there no dies for 5.56 for purchase?
5. Since it takes more work by the mfg to make 5.56 shouldn't surplus ammo cost more than 223? (brass not steel)
6. How much longer or shorter is barrel life using one or the other?
Jim