Hold the idea of 'building a rife' until you get a standard one. So called built rifles have little value on the used market and don't always turn out like we want.
A already 'built' factory rifle left somewhat original will retain the most value.
Don't worry about the cartridge or chambering all that much except to select a popular one where you can get ammo today at a local store.
My choice of a 7mm would be a Kimber 84M in 7-08 or a M70 in that chambering. If you must have a magnum the 7mm RM is popular.
+10 Best advice yet. you don't reload and you don't know what you want. How can you intelligently build something in reality without the experience of using something close to have allready built it in your mind as to what it needs to be. You asked. Go buy a syn stocked M700 7mm Mag or 7-08 and put good recoil pad on it and the glass you need. Use it atleast 3 seasons then you won't need to be told what you need. Magnum Man
