It would be nice if they got it right, tho'. :D
(I mean, is it so hard to check wiki? )
And while the guns are fictional, name-wise anyway (and, well, it is a game), some semblance of 'accuracy' helps w/ 'immersion', esp. for folks who are familiar w/ terms and the like.
Re: clips
hehehe, it's not just large rifle rounds, I think. Weren't there pistols that used a stripper clip? (Mauser C96, for example)
If there's anything I'd complain about, it's how a lot of the guns seem to MISSING their magazines in-game (not to mention how weird some of the guns look at times).