The 6.5-20x is the big boy in the Fullfield E1 family"" and allows for some seriously long range hunting and shooting. This Fullfield E1 model has side adjusting parallax focus. The Ballistic Plex E1 MV reticle is custom designed for this scope. MV stands for Milling Varmint. The holdovers are designed specifically for .22-250 rounds"" and are mil-based. It means this is a great choice for coyote hunters"" prairie dogs and similar varmint hunting. The scope focuses down as close as 50 yards"" though"" which makes this one popular with precision .22 LR shooters.