EMPTY OR DISCHARGED CARTRIDGES OF ALL BORES AND SIZES, INCLUDING THE FOLLOWING: CLEAN FIRED 70/30 BRASS SHELLS FREE OF BULLETS, IRON AND ANY OTHER FOREIGN MATERIAL COVERED BY ISRI CODE WORD 'LAKE', CLEAN MUFFLED (POPPED) 70/30 BRASS SHELLS FREE OF BULLETS, IRON AND ANY OTHER FOREIGN MATERIAL COVERED BY ISRI CODE WORD 'LAMB'