I had a model 7 in 6mm. All I can say is don't go there. First of all the Ruger M77 MKII is a far better, more accurate and reliable than the Model Seven in a bolt gun. I had a large 6 point in front of me and hauled down with the Model 7, squeezed the trigger...nothing...saftey on?? No. Squeeze trigger again.....nothing....swing rifle upward.....BANG!!!! Scared the crap out of me. Took it home, went through it cleaning and dry lubeing. It had been cold. Put it in the freezer overnight. Took it out in the morning, loaded it, and BANG. It worked. Happily I took it back out deer hunting. Now I had a fat butterball year and a half old doe in front of me. Squeeze...felt like the safety is on......no, its off,.... raise the rifle upward and BANG. In the long run, I had a "gunsmith" got through it with no findings. I got rid of it. A couple of years later, Wayne, the guy from Florida I'm always talking about, ran through the same thing with a Remington 700 .30-06. These were not fail to fires. The firing pin never moved until the rifle changed position. Very spooky stuff.
I'll take my Handis any day over all of them.
Pete