I have one as an insert barrel in a Heym 16 gauge Drilling. Shoots like the devil, right on spot of the 7x65R below.

As German laws require a minimum of 1000 Joule energy at a hundred meters to shoot a doe (German Rehwild), the 6x70R is imo the choice no one as an insert barrel calibre.

Up to now I only shot one doe and the bullet performed right to my expectations ... clean shot, no haematomes, no meat destruction.

Joachim