User blog:Brainwasher5/Blocking mechanics

I am sure that everyone here knows that the maximum possible block chance for shields in Diablo II is 75%.

On paper, at least. Unless shields do not always make the "ding" noise whenever a block activates, I'm noticing that (missed hits aside), enemies are hitting me rather than my shield far more than 25% of the time.

My question is: is the 75% value accurate? I know that hit percentages aren't with certain attacks, wondering if the same thing is true here.