how bad of a recoil do you get in your Encore in 416 Rigby?
I didn't think the rigby was that bad with a muzzle brake. If I recall my load has 128 grains of IMR4350 w/ a 400 grain Barnes. That much powder produces lots of gas. Lots of gas makes the brake very effective.
In fact, while everyone at the range was scared to even try it, it was loud and would clear 3 shooting benches on each side of it, my younger sister would shoot it pretty well.
She is an athletic and strong gal, 5'9" 135lb triathlete, but pretty tiny when compared to big bro. People would be pretty much in shock watching her shoot it especially when she would split old bowling balls into a couple of pieces with 1 shot.
Unbraked, it was down right U-G-L-Y
What would you compare it to?
Braked - Probably to a really heavy 360 grain load in a 454 Casull. With the brake, it was a pusher.
Unbraked - getting hit in the head with a baseball. Your head would just throb after a couple of shots. I am sure it was concussion symptoms but I had a similar experience with my unbraked 510 Wells Express rifle with 600 grain Barnes after about 10 shots in ~60 minutes.