I know that .223/5.56 is the norm, but I see .308, 6.65, 6.68 and 7.62.
I've seen many say that the .223/5.56 doesn't have enough stopping power.
I know the .223/5.56 is fairly cheap ammo, so a person could practice a lot more.
I really like the POF/DSA Z4-GTC (depends on price, haven't seen any yet). I'm trying to select my first AR to go with my .45 and 12g auto-shotty. I do plan to shoot/practice with it a lot, possibly compete in 3 gun matches with it. I just want to make sure that I select the right caliber for when it is actually 'needed'.
The .223/5.56 may be fine, but I want to hear from those of you with experience. I'm sure, like a pistol, that shot placement is key.
I know that ar15.com has lots of info, but I can't post there as I don't have a non-anonymous email address yet. Besides that, I just like you guys.
What are your thoughts?