Mike,
I do shoot alot of big stuff, and have for a long time. But I am 45 years old, 5'-9" tall and weigh over three hundred and thirty pounds. So I am certainly no stud. I gave up lifting and working out 20 years ago. I am not kidding when I tell you this gun is totally shootable. With the brake on, it is not painful at all, and I would say kicks less than an unbraked 460 weatherby. It is certainly no pea shooter, but it is totally manageable. It will probably be a month before I get the full 2400 ft/sec loads. I will let you know what I think after shooting them.