....Three 7 lb long guns with the same stock-barrel geometry and same butt configuration. One black powder rifle, one Shotgun, and one magnum rifle....
....One will always have recoil with higher peak force than the other two. In this example, it's the magnum rifle....
I think a better description of this comparison would be to consider just using the term rifle, instead of magnum rifle. The felt recoil difference of say a 30-06 compared to a 300 Win mag is very significant to most folks. The higher end of 12 ga slug, or magnum hunting load, muzzle energy is probably similar to the 30-06.
Even with full knowledge that the configuration of the firearms are different, now my subjective impression is that the slug gun is punishing and the 30-06 isn't too bad at all. I'd agree though that the shorter duration of the rifle bullet in the barrel feels like a sharper pop during recoil to me.
