Buying used reloading dies

[Gil Martin]

While in a local gun shop today and was looking around. I found excellent used RCBS reloading dies in 6mm Remington and .444 Marlin that were made in 1974 and 1975. They were very reasonably priced so I bought them. After getting home I had to put the dies in a padded vise to get them apart. For some reason the factory and prior owners seem to tighten reloading dies to an extreme degree. I do not get it. Anyone else notice this trait? All the best...
Gil