07-06-2019, 03:02 AM
Rounds, especially factory, that won't chamber/give light strikes has happened to me in the past, in one barrel, not a monster btw... it was a short chamber/too long of a shoulder on the brass. But yours sounds more like a non-std bolt issue.
The bolt face depth is either 0.125 or 0.136, +/- a 0.001, you can't have both. Carefully re-check, don't measure off of the extractor. If you have an in-spec chamber sized for 0.136 bolt face depth (the monster barrels are typically sized for 0.136" bolt face depth bolts), but your bolt face is 0.125 (ie, a bit more shallow than the real grendel 0.136), that's the root problem. A 0.136 chamber will be 0.011 shorter than a chamber that uses the 0.125 (which your bolt might be). So the brass won't have enough room to seat. Measure your bolt face depth to see if it is 0.125" or 0.136".
Hope that all makes sense.
The bolt face depth is either 0.125 or 0.136, +/- a 0.001, you can't have both. Carefully re-check, don't measure off of the extractor. If you have an in-spec chamber sized for 0.136 bolt face depth (the monster barrels are typically sized for 0.136" bolt face depth bolts), but your bolt face is 0.125 (ie, a bit more shallow than the real grendel 0.136), that's the root problem. A 0.136 chamber will be 0.011 shorter than a chamber that uses the 0.125 (which your bolt might be). So the brass won't have enough room to seat. Measure your bolt face depth to see if it is 0.125" or 0.136".
Hope that all makes sense.
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