I don’t know a single hunter who uses a magnum. Prolly the most common I see is 30-06, 243, 308 or 270. Prolly more 270 than anything… excellent deer cartridge.
I know I’m a fudd…
I run 257 AI and Roberts in the Hawkins hunter DBM with 0 issues. My favorite caliber. Please keep us updated on your build! A nice maple stock would look great. Or maybe find a nice factory high glass BDL stock…..