Thinking about picking up a used Mark X in 7x57 to complement my Ruger #1 in that caliber; the action is the usual Mark X of which I've had several so that's familiar, but I do have a few questions about the 7x57 in particular, for those who have had them:

1. Rifling twist?
2. Throat length?
3. Performance with 140-160gr bullets?

Any pics of your Mark X 7x57's would be appreciated grin