02-27-2014, 01:11 PM
offensive Wrote:My question is am I going to have to buy another boltWho's bolt do you have and what is the head space. Truthfully I have all 3 of the .135 bolts and they all chamber a round, work with the Go and No/Go gauges in the Lilja barrel fine. The Maxim, AA and LBC bolts are all within spec of .135/.136 and if it is .001 less it will still work, I think there is a .003 tolerance but either of those manufactures have the right bolts. Also the AR-15 has play in the bolt to barrel extension, simple fact so it can cycle ammo as a Semi-auto, if its to tight, it can stick, not like a bolt gun people get all hyped up about. One other quick measurement is the OAL needs confirmed due to recent issues, the bolt needs to be 2.810 (.010 longer) to accommodation the firing pin protrusion due to the bolt face being deeper by .010. Standard AR-15 bolts are 2.800.