Semi autos seemed to have a short run of military service in between bolt action and select fire rifles, and I thought it would be nice to try and identify them all. Here's what I know (or think I know, correct me if I'm wrong): 1941 Johnson, US- recoil operated .30-06, internal magazine; Questions: How does it load, and where are the rounds stored? Was it issued at all, and if so, when and where was it used? M1 Garand, US- .30-06, gas operated, feeds through 8 shot clip held in an internal magazine and ejected after the last shot; saw service in WWII, Korea, and early in Vietnam in sniper applications; Question: When was it introduced, and when was it adopted as the US service rifle? M1 Carbine, US- .30 Carbine caliber, feeds from 15 and 30 round detachable magazine, similar operating system to the M1 Garand, adapted to full auto as the M2 and M3 carbines; Question: Where and when was it introduced, and how long did they continue to use it? I know a guy who carried one in Vietnam. Tokarev SVT (40?), Russia- gas operated, chambered in 7.62x54mm, feeds from 10 round box magazine; Saw service in WWII if I'm not mistaken. Samozaryadnia Karabina Simonova (SKS), Russia- 7.62x39mm gas operated, uses fixed magazine fed through stripper clips; introduced in WWII, later mass produced as the Cold War began, then was replaced by the AK-47. Question: Where and when was it first used? G Forty something- German 8mm gas operated rifle designed to serve the same purpose as the M1 Garand, but appeared too late in the war to make a difference; very rare; I saw one at a gun show for $450... why, you ask? Because it had been converted to a manual operation. IDIOT!!! Could have been worth thousands... Ljundman, Sweden- gas operated 6.5mm Swede Mauser; Question: everything else about this rifle Hakim, Egypt- 7.92x57mm (hotter 8mm Mauser), based on the Ljundman Rashid, Egypt- 7.62x39mm, based on the Ljundman Czech 52- 7.62x45 Czech, 7.62x39mm Soviet; Question: does anyone have one? I saw one once for $250. Mas 49/56, France- 7.5mm French, gas operated, saw service until the 80s, 10 round detachable mag; some have been converted to .308 Win by Century Arms with criticism. Did I forget any?