Winchester Ammunition Varmint LF, 22 WMR, 25 Grain, Polymer Tip NTX, Lead Free, 50 Round Box, California Certified Nonlead Ammunition X22MHLF Varmint and small game hunters demand the very best when it comes to ammunition. Winchester Varmint LF includes Tin Technologies, clean-burning powder, and non-corrosive priming for consistent, sure-fire ignition.