I suspect the barrel twist varies with different manufacture. I know my son likes the 175gr. in his model 70 but I never took the time to check the specs on either gun. That may be of interest to any prospective 7mm purchase.

I think its more gun than necesary. Of course if you shoot it in the chest cavity where you should anyway, you won't lose anything unless it exits out the opposite shoulder. Its my belief that a 308 is sufficient for most anything in the lower 48. I use a 243. Shot placement is what's most important.

If you put the first 3 in one hole consistently I wouldnt call that useless Wont shoot that good with partitions though never found a rifle that will shoot them as good as interlocks

Yes I would imagine thats why, recoil tables will show recoil similar to the 30-06 but every 7mm mag I have shot has been worse than most 30-06's.  My brother does have a winchester 70 festherweight in 06 that kicks like a mule.  And I am not recoil shy I shoot a 444 with 300 grain bullets running near 2200 fps(that thing kicks) but I can shoot it accurately.  To me the question is why?  You can kill any deer just as dead with a 7mm08 or 7x57 and they shoot flat enough to kill at 400 yards if you can hit the vitals from that distance.

The same is true for a .243 or a .270 or just about any center fire rifle caliber.

There is no such thing as "too much" gun.