The RCBS AmmoMaster-2 single stage reloading press features enhanced construction with longer support columns and larger toggle block from the proven AmmoMaster .50 BMG press design delivering superior strength and durability for precision reloading.RCBS AmmoMaster-2 Single Stage Reloading PressEnhanced longer support columns and larger toggle block constructionUses standard 7/8-inch-14 thread dies and standard shell holdersCompatible with pistol and rifle calibers from .25 ACP to .50 BMGExpandable to .50 BMG with 1-1/2-inch Die Kit (88705) - sold separatelyImproved design based on AmmoMaster .50 BMG press engineeringPerfect for serious reloaders seeking a versatile heavy-duty single stage press that can handle everything from small pistol cartridges to large rifle calibers with the potential to expand to .50 BMG reloading capabilities.