There are several types of 223 headspace gages for 223, 223 Remington, 223 Wylde, 5.56x45, etc, which one to use when install a 223 Savage barrel? I like tighter headspace for accuracy but still able to shoot steel case ammo such as Wolf. I shoot 50% brass case and 50% Wolf steel case. Buying a headspace gage to swap a 223 barrel, thinking of the 223 Wylde go-gage, but not sure. Don't need No-Go gage right? On my AR15, I have Wylde chamber, but that is semi-auto and now it is bolt gun. Which one do you use? Did my search, did not find any posting on this matter to my surprise.