The 3 to 9 power magnification range used in scopes has been a popular choice for decades. Whether you are looking for a scope for hunting or target shooting, a 3-9x40 scope will give you incredible versatility. While the 3x will be beneficial for closer range shots, the higher end of 9x will aid in shots up to a few hundred yards away. Great options coming from Leupold, Vortex, Burris, Trijicon, Sig Sauer, Athlon, and Sightmark are available below.