Hornady Lock-N-Load Modified Case B Series .243 WSSM - B243

This modified case is designed for use with Hornady Lock-N-Load Precision gauges and features a fine thread attachment system that ensures perfect square alignment in the firearm chamber. The case neck is precision-formed to be perfectly round with a slightly opened mouth, allowing standard diameter bullets to seat concentrically for maximum reloading accuracy. Compatible with .243 Winchester Super Short Magnum (WSSM) caliber.