Get the standard .260. When you can outshoot its capabilities and have worn out a tube or two, you might be served with a hotrod that gives you .5 min less wind at 1K in exchange for a dramatic loss of barrel life. Go for the long life and shoot lots. Unless you are playing the game for money, don't worry about all the fancy named rounds. My second choice would be the 6.5x47.
If Lapua doesn't make brass for it, I will not use it.
Hey aren't you the guy that raves about the 204 for varmints? I didn't know Lapua made 204 brass![]()
... and opportunity to get to the point where you no longer have to solicit free advice from those with no stake in your choices, go 260.
Given the number of F Open shooters with the 260Rem that CAN'T reach 2900fps without all sorts of issues, I would not say it is easy to achieve. Low 2800's is where the 260Rem will thrive with the 140's.
I've done some other reading, and I think I'm going to stick with my original idea and got .260AI.
I've already got a Remington 700 in 22-250 that I will be rebarrellin, and a gun smith to do it. 260AI dies may not be the most common, but I have certainly seen them around. I really don't mind the bit of case forming. After all, it's not like I need to make 1000 cases, and I've read/heard that the sharper shoulders lend themselves to longer case life (all other things being equal).