Index of Technical Documents

Start by reading my explanation of how the AR-15 gas system works.

Simple 223 vs. 5.56 reamer dimensions comparison
Detailed 223 vs. 5.56 reamer dimensions comparison showing different variations
Feed Ramp Comparisons
223 Brass Weights Comparison
Barrel Weight Calculator
Backthrust Calculator
6.8 SPC Chronograph Session Data
300x221 Load Data
Barrel Nut Indexing Shims Instructions
Headspace Gauge Dimensions Comparisons
Land and Groove Styles

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