I started out many years ago as a 270 Wby fanboy, so to speak. Great cartridge and amazing ballistics, but after picking up and hunting with a 257 Weatherby a few years later, the 270 Wby rarely leaves the safe. I quickly discovered the 257 kills em' just as dead and does so with less recoil. Also, I will say, every single animal I've shot here in Central and South Tx has dropped at the shot from my 257. Amazing killer. With the 270, I've had a few run 20-30 yds before going down. Purely anecdotal, but just my experience I will say, I've been hunting with a 240 quite a bit these last few years and it's quickly taken a close 2nd as my favorite to my 257. 95gr NBT's at 3450 are nasty.