Hier mal eine Mail von Explosia, die Namen habe ich getilgt: Gefragt hatte ich nach Ladedaten S070 für die 220 Sierra Match King
Dear Mr. Seliger,
on behalf of Mr. xyzI will try to help you and muster as much information as possible.
As my older colleague would say, these bullets are not commonly used so we don't have our own data for it.
But, as i strolled through a few reloading books and manuals, I reached a conclusion that the loads you suggested are perfectly fine.
Even though I haven't find these particular bullets, I found "similar" ones (Sierra RN 220gr) with min.= 62,5gr and max.= 66,4gr. Of course with different OAL (84 mm)
I don't know if this helped you. Send me a reply if you need further assistence.
With regards