It is better IMO to stay within ones limitations and not make a shot you are not comfortable with. I have kicked myself a few times for letting one go that I could have esily killed but then at the time it was the right call and I really do not regret not taking the shots.
Fortunately, I didn't end up empty handed this weekend. I shot this nuisance Saturday evening after watching two young bucks show up and pass by after responding to my grunt call. Although I suspected shooting the hog would mess up my evening hunt, I remembered how I hate feral hogs a lot more than I hate deer. I reluctantly hunted the same stand this morning not expecting to see much but ended up seeing the nice buck and three lesser bucks in the same pasture. When the rut is on, they don't pay much attention to anything other than the doe that's in front of them.
Winchester Model 70 25-06, 120-grain Federal Deer Thugs Ammo