RE: What caliber for an Autoloader??
if you like glocks check out the model 21. 13rd 45acp. dont know if you have expirience with glocks or not but since you mentioned them i thought id pass that on..though its a littttle large for CC..its full sized..could carry it if you wanted..dad just bought a 21 and he loves it. i dont know that i liked it..grip was pretty wide for me but shoots well..also check out other 45s. see what fits your hand and what you like. i personally like sig sauers glocks and kimber 1911s but thats me. id definently probably stick with a 45. ammo is generally readily available and it packs its punch.