Winchester Varmint HV .22 Win Mag 30 gr V-Max Rimfire Ammo – 50/box is specifically designed for hunting varmint and other small game. This ammunition uses high velocity (hence the HV in the name) as well as precision accuracy. The bullet gives a lethal performance even at a long range. You can rest assured that the chamber pressures will be consistent due to the clean burning powder. The priming of this ammunition is noncorrosive helping its durability and the resulting impact includes an explosive expansion for effective results.