Is that really a 50x scope?

That would be WAY too much magnification for any serious distance. It will be unusable beyond 25-30x.
You bought into the notion that a massive round is needed to shoot long distances and that huge magnification is also needed. Neither are true. I shot to 2000 yds with a hot rodded 243 and a 16x scope. Way less powder, way less recoil and way less cost.
Recently I have been playing with a 338 LM and can't say I like it much. Too much recoil and blast pressure to be fun and the thing is just not as accurate as I'd like. There are much better choices for ELR shooting.
My current favourite ELR rifle is a 300 Norma Mag and a 25x scope. Still a bit spendy but way more fun to shoot than the 338LM.