I never had a 300 Wby, but set up a 300 RUM a couple times, both in Model 700s. I first one was in '99 and tried a boutique 150 BT Moly coated "bomb" that was recommended for a Desert Mule Deer hunt in West Texas. It made a big mess of a 3x3 last hour of the hunt at 60yds, ha. Gave that rifle and the rest of the ammo to my uncle. Second one was in 2006, a gift for my son In Law Marine. I used Retumbo and 200 NAB. He put a Huskemaw on it. I have killed a wad of game with the 300 WM and did not like it in Mod 70s, prefer the Mod 700 or 700 clone. I've been all over the map with calibers, but I'm very partial to the 300Win, nostalgic I guess, same way with the 338WM ( I've had bigger and smaller 338s, but keep coming back to this one) do I need it, Nah! Just like it...I think its easier to find 300 Wby brass/ammo than 300 RUM now. But again, I'm not a LR hunter, never shot game over about 390 (300WM) and 375 (257wby) lots of 350ish with 300 and a few others. My "average range" on 4 cow elk had been 175 yds or so, Mule deer average 70yds. Antelope is the furthest, about 200yds. But I do know guys that shoot/kill elk and mule deer 700yds pretty regularly. I was once told by an old LR hunter that the 300WM was a 500yd elk rifle and the 300 RUM/300Wby were 700yd elk rifles. I don't really know, but he seemed convinced! ")
