I'm laughing at the similarities here.I'm thinking about ordering a MK X from shaw and I can't help but get a strong case of caliber creep. I'm wanting a step up from my .243, which is perfect for the Texas deer I currently hunt. In the next couple years I want to hunt aoudad and antelope. At first I was stuck on 280ai, then I shot a 270, and kind of started to like that one. More looking and researching made me think 300WM or 338-06. So for everyone that has been down this road, what made you finally decide what you wanted?
I started with a .243, went to .270. I ran the .270 for 15 years. Then 338/378, 338-06, 300wsm, 7x57AI x 2, 7RM, 45-70, and ............
Just saying that nothing really help me decide on anything other then good ole gun lust ! I'm still buying a few a year and need a third safe. If you have a good idea on what you plan on hunting, base it off of that. For instance, if your planning a antelope hunt, the 338-06 wouldn't be the best choice but the others you mention are great. Assuming you reload if you thinking 338-06, but if you don't, look for ammo availability. Have a rifle that will take antelope/deer - elk would be my thought if trying to decide. The .280AI or 300WM are both fine and I'd take over the .270 only if looking for larger game.