Hi all,
I'm putting together an AR15 with a new LMT BCG and Krieger barrel, for giggles I decided to check headspace before putting everything else together. I stripped the bolt and re-assembled the carrier group and proceeded checking with the "GO" gauge. With light pressure, the bolt would only turn about 10 degrees and stop. I put several live rounds in from various mfgs and the bolt turned and locked on all of the rounds. Several questions:
1. The barrel is chambered for 5.56, but the gauges are for .223. Is this what is causing this?
2. Is this a big enough problem that I should send the barrel with bolt back to Krieger to get them to match the bolt to the barrel? Or is it just this tight because its a match barrel and will eventually wear in?
From google searches on the subject, none with a solid answer, it appears that it is unusual to have, however, there is no risk of damaging anything. It would require more frequent cleaning and may not function reliably until it is worn in. Any opinions here?
Thanks.
I'm putting together an AR15 with a new LMT BCG and Krieger barrel, for giggles I decided to check headspace before putting everything else together. I stripped the bolt and re-assembled the carrier group and proceeded checking with the "GO" gauge. With light pressure, the bolt would only turn about 10 degrees and stop. I put several live rounds in from various mfgs and the bolt turned and locked on all of the rounds. Several questions:
1. The barrel is chambered for 5.56, but the gauges are for .223. Is this what is causing this?
2. Is this a big enough problem that I should send the barrel with bolt back to Krieger to get them to match the bolt to the barrel? Or is it just this tight because its a match barrel and will eventually wear in?
From google searches on the subject, none with a solid answer, it appears that it is unusual to have, however, there is no risk of damaging anything. It would require more frequent cleaning and may not function reliably until it is worn in. Any opinions here?
Thanks.