Most anything 30 cal.
Specifically a 300 mag in one variation or another. But I love my ol -06 as well.
Next would be 270 followed by 338. Just seems to me to be the only calibers anyone would ever need for anything in addition to the 22 LR, & a BB gun.
I've had much success with all the above mentioned, so sentimental values on top of success leaves little room for anything else in my personal playbook.