I've seen some 25-06's that shot great and some that shot poor. For groundhogs, I didn't really mind the recoil and the splat factor was nice. I was once siting in my 257 weatherby Mark V. I was done and sitting at a the bench at my Dad's when way out...(a walked 575 yds) we seen something move. It was a groundhog. Only having the weatherby, we discussed it and I had just ran it over the chrono and figured the drop in my mind (kept wanting to hold higher but overcame the urge) and WHAM...rolled him and cut him about in half....I held about about 4-5 inches over his back. This gun for a hunter gun was a 3/4" 3-shot gun. The only downside was mining the copper out of it....I'd rather chip through granite with a rubber mallet.
That fall, I was checking the sighting for deer season at my former father-in-laws. Just got done and was just sitting at the bench taking things in and a deer walked out of the woods (some pines) and stood broadside, right in front of the target, the gun was still in the bags and was lined up....talking about a deer who was in the wrong place at the wrong time. I guess the sighting in made him curious. Nice little seven pointer.
Hovis