I like how the last guy thinks he's big stuff........his rifle probably weighed a good 3-4 pounds more though.

.577 T-rex eh, look up a'lil info on it. With the meanest load I found its makes 133ft/lbs of recoil....in a 13lbs gun.
(Numbers this big may throw off LEE's recoil generator...took me awhile to figure out that 33.8ft/lbs on the screen ACTUALLY meant 133fl/lbs. I guess LEE doesn't expect people smart enough to use a computer to be dumb enough to shoot a gun with over 100ft/lbs of recoil!)