All three arrow setups worked sufficiently and achieved enough penetration to get the job done quickly. However, there wasn’t much comparison in penetration between the mechanical and the fixed broadhead. There was about 15 yards difference in shot range, but all were vital shots in the heart/lung area of mature muskox bulls. The lightest arrow got about 12 inches of penetration, the heaviest achieved about 15, neither striking any major bones, and both pulling large clumps of hair into the wound. My dad’s single-bevel setup split the entire scapula, top to bottom, and knocked a big chunk out of the far shoulder, just cutting through the skin and getting around 22 inches of penetration. Upon recovery, it was still shaving sharp.