Cartridges that are good for such things as fox, and crows aren't necessarily great for squirrels,....that is unless blowing them to smithereens is the goal......and that's not all bad as some of them are extremely tough and not worth the cooking!

I've tried a lot of varmint rounds and have settled on the .223 as the best of all.....it can be immensely accurate (the Savage is the right gun too) and with 40 grain bullets it will make crows explode like a hand grenade was planted in them!

One can shoot heavier bullets for a bit more wind bucking in longer shots too.......Out to 300 yards it'll amaze you how good it is and it's likely you will see many groups at that range to consistently hit targets the size of hen's eggs or a bit bigger.

It's cheap to shoot as brass is easy to find and it won't burn a lot of powder.......224 bullets are also plentiful and Midway has some varmint nightmares that are very cheap and work great.

The .223 is a darn hard to beat round!!!