I have two Browning Micro's with the 20" barrels. One is .308 and one is 7-08. I get a bit more muzzle jump and blast with the .308 but neither is bad. For some reason I seem to use the 7-08 more than the .308.

I like the fact that factory ammo is cheaper and easier to get for the .308 but I prefer the 7-08 to hunt deer with.