SKB described its lineage very well. It could be named the 6.5-08. I switched from .243 to .260 a few years ago for Pa. deer hunting when I got a .260 barrel for my Encore. I love it and wouldn't hesitate to hunt anything from groundhogs to bear with it. My son has a Savage in .260. It is a very accurate cartridge with little more recoil than the .243. A lot of long-range shooters use it for varmints and competition. Its near identical twin, the 6.5x55, has been popular in Europe for decades and has probably taken just about every game animal there is. I also have a 7mm-08 and IMO the .260 does everything that cartridge does with milder recoil and flatter trajectory. The only drawback, if you don't reload, is the limited offering in ammunition and the cost of factory ammo. Savage chambered several of its rifles again this year in .260 and the .260 is gaining popularity in the AR platform so I'm hoping that its popularity continues to increase in the US. You have a great rifle!