ha. didn't know you could shoot the beams. i'm still old-school as far as RE goes (even tho i shouldn't be), so the thought of wasting a bullet on something I don't need to is hard for me.
I play old-school RE too but my main reason is to not waste accuracy. I always love seeing my shiny A rank medal fo accuracy. Also you don't have to shoot any of the other barrels. They're not blocking paths and they're only for killing zombies (for a medal)