military arms combat assault rifles development

The development of military arms like assault rifles for combat. Historical back flash: Mississipi rifle. Indian War. Spanish American war bolt action rifle firarm. German Mauser cartridges bullet chambered. Springfield rifle world war one Spitzer bullet. Korean war gas operated rotating bolt. M14 replaces M1. single and automatic fire. M16 460 meters range Vietnam war. M16A2 combat rifle. hit probability targets by shooter. improve marksmanship by improving rifle. target range testing.