For deer, you don't really need 30 caliber. Why beat yourself up unnecessarily with a 30 caliber magnum?
Look for a magnum in the 243/6mm, 270, or 7mm calibers. I'd probably try to find a 6mm, then you can load it with lighter bullets have a varmint rifle too and snipe smaller animals at range too. (raccoons, moles, coyotes, feral cats) Maybe this is frowned upon, but you could eat them too! I bet in a Crock Pot, even raccoon can taste good.
A bolt actions are not needed. You could easily do it with a MoA single shot, like a T/C Encore.
The yardarge markers is a great idea. Cheaper than a rangefinder, and no batteries needed!
You'll need to do some homework on your handload as far as bullet drop, and also for windage.
I agree that calling it hunting is a stretch, but it will be fun and put meat on the table, and keep one more deer off the roads too!
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