I've read through my searches on here, narrowed it down to these two calibers.

Any info to help my choice would be greatly appreciated.

I like the 6cm for the speed and the proper head stamped brass.
I like the 47 for extra barrel life and great quality brass, however not properly stamped.

So is one more inherently accurate than the other?
Am I missing something that's not obvious?

What would you guys pick? Mostly just varmints, possibly long range targets as well.

Thx for any input.