By close, do you mean the bolt rotates all the way clock-wise as it does on an empty chamber? The locking lugs have a helix angle, so closing short of full bolt rotation may still be in spec.Except that a standard 223 headspace no-go gauge will allow the bolt to close on my Target model. The Target model is NOT listed by Ruger as safe for the 5.56.
I don't understand the conversation comment! If it's meant to be sarcastic, there is no need for that.Are you actually holding a conversation here?
Last I checked, closing on a NO-GO doesn't automatically make a rifle unsafe.
If the rifle is re-barreled under warranty, it's Ruger doing the work, therefore it's Ruger choosing the headspace dimensions.
Are you sure you're using the headspace guages correctly?
I'm no expert, but to the best of my knowledge it goes like this: SAAMI .223 vs 5.56 NATO spec involves the distance between the case mouth and the beginning of the rifling. Reason its potentially unsafe is that there is a chance you'll get a slightly long (but in spec) 5.56 ctg and the bullet and case mouth can be jammed into the rifling resulting in excessive pressure. Shorter throat should give better accuracy since the bullet is clearing a shorter distance, but its at the cost of requiring tightly spec'd ammo that won't run the risk of jamming the case mouth into the rifling.That is the reason I was asking about the Ruger gauge vs the industry standard in 223. Again this is NOT for the ranch rifle, it's the Target model. Ruger says it's not safe for 5.56 ammo, so I was real curious when the bolt closed on my no-go gauge.