Prepare to be wowed by the Franklin Armory F17-L. The rifle is engineered and built specifically for the .17 Winchester Super Magnum cartridge, a relative newcomer to the rimfire scene that ups the ante in ballistic performance. From the F17-L’s 20-inch barrel, the .17 Winchester Super Mag. reaches a muzzle velocity of up to 3000 fps with a 20-grain bullet for about 400 ft.-lbs. of energy. To safely harness the higher pressure for reliable cycling, the semi-auto F17-L uses a gas-piston operating system paired with a rotating, locking bolt—similar to what you’d find in a piston-driven centerfire AR. If you’re looking for the utmost in rimfire velocity to knock out groundhogs, prairie dogs and even coyotes, the Franklin Armory F17-L will bring it. Learn more about it in the video embedded above, hosted by Executive Editor Adam Heggenstaller. MSRP: $2,069.99; franklinarmory.com.