I’ve had my 7-08, 243, & current 308 since the early ‘90s. I find ammo for all 3 every year though only the 308 easily year round. I shoot my 7-08 most because I like the rifle the most and so the model would be my criteria today to pick. If the same model I would look at fit and finish. If both of those are good, flip a coin, caliber be damned.