I haven't shot any guns in the army or such things but for civilian rifles I've shot the 20/12/10 gauge shotguns, a 44 mag, security 6 and 9mm for pistols, 22, 270, 45-70, 7mm, 8mm, and an Ak-47 WASR. Out of all of them my favorite by far is the AK. Rounds only run about 20 cents a round or less and with a scope and some other things it is ok accurate up to around 100 yards. Also it doesn't leave you with a rubber arm at the end of the day like most of the other rifles, except of course the 22. The 22 is always fun but it just doesn't have the power like the ak that reaches through a 12" thick dead tree to get to the target. I didn't believe it would do it until I tried it for myself and watched it go through the tree then through a steel satellite dish... One last thing. What gun would you rather have if the world ended today? It is in a class of it's own there =)