Have you shot one of these monsters. I shoot long range and enjoy it. My step son has a 300 RUM, it's the only gun I've ever shot that was no fun. It's no fun to shoot, HELL to sit at a bench and run ladder tests trying to work up a load. 300 win mag is the most I'll ever have in a carry rifle.
My 1000 yard bench rest rifle is an 18 pound 6.5X47 Lapua. It's a JOY to shoot. I hunt with a 7lb 270 win that shoots 5" groups at 700 yards.
Get a boomer if you want one, but I want to enjoy shooting every weekend.
That's my .02 cents.
By the way, we only shot the RUM to 400 yards, but we shot 4 inch groups with 180 Barnes TTSX and 101 grains of Retumbo. We could probably have done better, but that was good enough for elk, and we were tired of getting our teeth kicked in doing load devlopment. Even with a lead sled it was NO FUN...