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Sep
Sep
Quick Answer: Arrow shaft diameter is measured as the outside diameter (OD) of the shaft tube, typically ranging from 4mm ultra-micro to 6.5mm standard. Smaller diameters (4mm–5mm) cut through wind better and penetrate deeper on game; larger diameters (6mm–6.5mm) offer wider component availability, lower cost, and more forgiving tuning. Most bowhunters choose 5mm or 4mm […]