Hmmm. A .16 with a hard butt plate. I'd almost venture a guess it was a Ruger. That piece of hard rubber they call a recoil pad is a joke. I shoot the Ruger #1's in .404 jeffery and .416 Rigby only rarely and I have to be feeling rather masochistic to do so.
Seriously though, I only shoot them from either off hand or from a rest that allows one to shoot standing up. Does a decent job of allowing one to roll with the punch.
You do realize that the .416 Rigby and the .460 Weatherby use the same case don't you? The only differnce is Weather put a belt on the case and uses his silly lookong rounded shoulder. To put it another way, I can load up my Rigby using data for the Weatherby without paying the high price of Weatherby ammo. However, I've never felt masochistic enough to do it. My right shoulder is in bad enough shape from arthritis as it is, so why aggravate it even more?
Anyway, there haven't been any T-rex's invading my back yard lately so my dogs are safe.
I've always enjoyed the challenge of shooting the big bores but twixt arthritis and old age, the biggest thing I usually shoot anymore might be an 06 or .270. My .280 has very little kick, feeling more like a .243 due the fact that it weighs a bit over ten pounds ready to go out the door. Just too darn heavy to pack at high altitudes where I hunt.
Paul B.