True 5:1 concentration. 1  Double the strength of other brands. 2  Minimal or no fillers and binders. 3  No pharmaceuticals, sugar, or dyes. 4  Comprehensive lab testing (e.g., heavy metals,etc.) 5  Made in a cGMP certified facility. 6  Unbeatable value. 7  Safely used in the USA since 1995.
Arrow Length - refers to the length of the arrow shaft. Arrow size - refers to the spine (stiffness) of the arrow. The shaft size is always referring to the diameter of the shaft, the wall thickness of the shaft and the distance that the arrow shaft will flex before it bends or breaks.
Let's try however. Arrow with mass of 25g, which may travel at 75m/s: Ek = 61 J Bullet 5.56x45mm with a mass of 4 g flying at 940m/s: Ek = 1620 J Gun bullet (.45 ACP) with mass of 12g at 373m/s: Ek = 835 J Comparison seems favourable for firearms.