Rifle range at home?

[ksubuck]

Thanks for the thoughts.

The range would just be for personal use to practice with and work up loads for the hunting rifles. Calibers up to 325WSM at a range of 200 yards. I can see only shooting twice a month and then only shooting 20 or so rounds in a session.

Is my plan for the box close to an appropriate size, overkill, or underkill?