LAPUA BRASS 223 REM 100PK - SKU: 4PH5003 .223 Rem. This match case is produced with very tight tolerances including neck concentrity, base straightness and wall thickness. Consistent quality guarantees consistent results. The large case volume ensures high velocity potential. Strong case construction, optimised strength and grain structure in the metallurgy allow multiple reloading cycles. Lapua cases are the best in the world. The base, body and neck of Lapua cases have been designed to maintain exact tolerances over multiple reloading cycles. Advanced metallurgical research and manufacturing techniques ensure that Lapua cases are leaders in uniformity and quality.