Originally Posted By: yoteblasterWhy does bolt gun load data appear to be higher than the AR-15 platform. If I have an adjustable gas block can I use bolt gun loading data?
I compared the 223 bolt loads with the 2223 AR-15 loads, in the Sierra manual, an some of the AR loads are higher.
But the difference between the two on either side were miniscule, and not worthy of any attention. Another manual will give different numbers.
It has NOTHING to do with blowing up your gun, and cannot cause slamfires - that is a primer caused problem, not a pressure issue. (... and we wonder where wive's tales come from???).
The difference between the two loads comes from how the tester reads pressure signs, the size of the bolt's firing pin hole, and what he had for breakfast, and how beetchie his wife has been.
There is no actual difference in the pressure that either gun type can handle.
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