Good Post JP!
I think were some get into a real problems no matter whether a 308/30-06/ 7MM Rem Mag. or what ever. As JP stated some of the 30-06 rounds have more recoil than our 7 MM Rem Mags. Some start with improper procedures with the rifle to begin with. For example, the person who may really be fairly new to the sport, shooting, specific rifle caliber, or hunting goes and buys a new rifle for themselves. Does not correctly mount the hardware and scope on it which haunts him or her later after attempting to zero and needing to start all over again. Then they do not properly bore sight the rifle first or starts off the first shots at 100 yards not at a closer range for example 25 yards, or whatever to get some rough adjustments prior to moving back. Subsequently they end up not even hitting the target or backer at 100 Yards. "Like Where The H--L Did It Go! What am I saying. They are experiencing undue recoil at that point. Now they are frustrated and continue to shoot and shoot out of frustration and experience undue recoil and waste valuable ammunition. They end up shooting 10 then 20 and maybe even 30 rounds in order to get their zero if they do. Shoulder tender, flinching and the bad habit that just developed. And then want to blame the rifle and tell how bad it recoils. Oh don't forget scope bite! When you get tired, frustrated and not thinking clearly is when it normally happens. Some of us have seen this scenario time and time again. And admittedly some of us have experienced similar situations particularly when we first began before we got instantly became smarter old dogs. So pay attention to the lesson in point. Learn from the old dogs here on the forum. Bore Sight if possible! Even on a street light after dark! (SHHHHHH!) It works also! Then start out at 25 or closer and get it on the paper. You should be able to completely sight a rifle in at 100 Yards with no more than 6 shots max if you bore sight and start out close. Then move back and finalize your zero. Practice and you can become proficient with this.