Being an experienced killer would increase your proficency with weaponry...
I'm not an experienced killer or a soldier or a space marine or a hero. What does that have to do with video games? That logic makes no sense.
I'm (not sure about anyone else) not asking for a feature that requires you to count. JUST a button, Joel does an animation, then a flash up on screen of your your current ammunition level. That's it.
I'm not trying to stir up a previously deceased argument, but I can see where PePziiC-x is coming from.
I did some thinking and I'd say it should be reduced to only specific weapons, the ones with a higher capacity magazine/clip. It looks like a standard six-shot revolver is Joel's signature weapon - six shots really isn't many to keep track of, and given the circumstances after 20 years of continuous routine it wouldn't make sense for him to not keep track of the rounds. If he is always emptying out hunter's revolvers and slotting the bullets into his he would undoubtedly have a rough idea of the bullet count.
In this Condemned game, they're looking at clips. Makes sense. But if we're looking at having two different pistols - one where you'd have to check the rounds and the other you wouldn't - I'd easily stick with the revolver.
However I still support the idea because whilst it makes less sense for Joel not to know his bullet count, it makes more for me to have to keep checking because I'm not accustomed to doing so, making the experience that much more immersing.