A 6.5 X 55 in a military rifle is extremely comfortable to shoot, a *****cat. And a modern rifle in this caliber, even in a fairly light rifle, can be very easy to absorb if the stock is fitted correctly. It is probably on of the best cartridges going for combining mild recoil, potency, and versatility....bullet weights from 85 grains to 160 can be had.........but this puppy really shines from 115 grains to 140 grains