OK, I'm an anal son of a . Anyway, I have a load of Olympic plates (all different brands) that I've acquired over the years and I decided to weight them.
Here are the results:
2.5, 5, 20 (I acquired two of these oddballs as part of a set years ago), 25, 35 - All weighed within 1/2 lb +/- their indicated weight. So far so good.
10 - All my 10's weighed 11 lbs.
45 - All my 45's weighed 48 lbs.
That kinda es me off. If I had 4 45's and a 10 on each side of the bar, it should be 425 lbs, but instead it's 451. That's a big difference.
Anyone else ever weigh their plates?