Curious about the popularity of centerfire rifle cartridges? Occasionally, the major ammunition manufacturers release annual sales lists by caliber. There usually isn't a dramatic change from year to year in such lists, it is more like a slow evolution. Here is Federal's list of their top selling centerfire rifle cartridges:

1. .223 Remington
2. .308 Winchester
3. .30-06 Springfield
4. .30-30 Winchester
5. .270 Winchester
6. .243 Winchester
7. .300 Winchester Magnum
8. 7mm Remington Magnum
9. 7.62x39mm Soviet
10. .300 WSM
11. .22-250 Remington

The most interesting change on this Federal cartridge sales list (since 2005) is the .308 passing the .30-06 in popularity. Also interesting is the appearance of the 7.62x39mm and .300 WSM on this list. While no longer in the Federal top 10, the .338 Win. Mag. remains the best selling of all medium bore cartridges.