Hornady Superformance Varmint, 223 Rem, 35 Grain, NTX, Lead Free, 20 Round Box, California Certified Nonlead Ammunition 83266 Superformance(R) Varmint ammunition delivers muzzle velocity increases of 100 to 200 feet per second from EVERY gun. Accuracy, increased range, flatter trajectory, less wind drift and devastating terminal results are all realized with Superformance(R) Varmint ammunition.