Shucks, when I'm pacing off distance I do it at 26 paces equals (damn near exactly) 25 meters, 104 paces to 100 meters. It's been that way ever since it was first measured back in 1963 and every time I've been able to check it since then.

(Sorry, my pacing for distance is metric because it was measured by the US Army. I also estimate range in metric, not English, for the same reason.)