As Mike Hill pointed out, the recoil from 100 grains of Triple Se7en or any powder for that fact will be influenced by a number of factors. The make of the rifle for one. Some rifles just kick worse then others. This is influenced by weight of the rifle and design of the stock in some cases. I shoot T/C Renegades which are nice rifles to shoot but because of the stock design, by the end of the day shooting strong charges, my cheek bone under my eye is SORE!!

Recoils are also influenced by weather conditions. Ever shoot your rifle on a clear crisp morning and have it jump up in your hands, where as shooting it on a humid or rain day can (not always) be much different in experience. Also the amount of clothing you wear will effect the recoil. Shoot in a T-shirt VS a winter jacket and you will note the difference right away.

I have never found 100 grains of anything uncontrollable. It will all depend on how you address the rifle and you shoot. I keep the rifle butt firm to the shoulder but don't suffocate the rifle with a power grip. This allows the recoil to move a little through the rifle and me.

Most of all get out there and shoot it. It should not be too bad..