In germany the coordinates are quite precisely. The distance between the real cache and the given coordinates is usually less then 5 meters.
We all use the same GPS Signal und the same devices. If there is really a difference between accuracy in different countries it should be caused by the owners.
Greetings from Germany.
And also.
If there is a translation needed... send it to me. No prob.
If you vist the area around "Warstein" - Let's cache together...
Happy Hunting
Steviesan