I found a Rem custom shop Model 7 in 7mm BR. The rifle and scope package weigh 6-1/2 lbs. I am thinking it would be a good centefire rifle to start my kids off deer hunting with. Has anyone used the 7mm BR on mule deer? I know it's not much more then a 200 yard cartridge in this application, but I'm going to have to get them closer than that anyway. Thoughts?