I have not heard of a MK VII (7) round in 175gr. Just 174.
The MK VIII (8) was in 175, really made for the Vickers MG, but again, both military rounds and anybody in their right mind would be loathe to use them on a nice double. And you're still an ass, but were still waiting for your answers,,,
Yes, Mark VII's were 174. I used to shoot up a bunch of them.
