This unit features a decapping rod, TICN coated expander ball (that reduces neck expansion force by 10 percent), and decapping pin. It's used exclusively with the MatchMaster sizing dies to deprime the case and expand bottleneck cartridges. Compatibility 9845 9846 9847 9848 MM EXP-Decap Unit 204 MM EXP-Decap Unit 223 MM EXP-Decap Unit 22 PPC MM EXP-Decap Unit 6mm .204 Ruger .22 Hornet .22 Creedmoor .243 Winchester .22-250 Remington .22 GT 6mm ARC .223 Remington .224 Valkyrie 9849 9850 9851 9852 MM EXP-Decap Unit 6mm PPC MM EXP-Decap Unit 6.5mm MM EXP-Decap Unit 6.5mm LAPUA MM EXP-Decap Unit 270 6mm Creedmoor 260 Remington 6.5mm Creedmoor .270 Winchester 6 x 47 Lapua 6.5mm x 55 Swedish Mauser 6.5mm x 47 Lapua 6mm XC 6.5mm-284 Winchester 6mm GT 6.5mm RSAUM 6mm BR Remington 6.5mm PRC 6mm Dasher 9853 9854 9855 9856 MM EXP-Decap Unit 7mm MM EXP-Decap Unit 30 MM EXP-Decap Unit 8mm MM EXP-Decap Unit 25 Long 7mm Remington Magnum .30-06 Springfield 8 x 57 Mauser .25-06 Remington 7mm-08 Remington .308 Winchester .25 x .47 7mm PRC .300 Winchester Short Magnum .25 GT .300 Norma Magnum 9857 9858 MM EXP-Decap Unit 30 Long MM EXP-Decap Unit 338 Long .300 PRC .338 Lapua .300 Winchester Magnum .300 RUM