.44 Special
The . 44 Smith & Wesson Special , also commonly known as . 44 S&W Special , . 44 Special , . 44 Spl , . 44 Spc , ( pronounced "forty-four special" ) , or 10 . 9x29mmR is a smokeless powder center fire metallic revolver cartridge developed by Smith & Wesson in 1907 as the standard chambering for their New Century revolver , introduced in 1908 . 
<triplet> .44 Special <subj> Smith & Wesson <obj> designed by <triplet> center fire <subj> metallic <obj> subclass of <triplet> New Century <subj> .44 Special <obj> ammunition <subj> Smith & Wesson <obj> manufacturer <subj> revolver <obj> subclass of