Need advice on calibers.
I've been shooting for some while now, mainly for pest control. I'd like to start deer hunting, but I don't know what all the jargon means. I don't want to start an argument on which caliber is best, I just want to know what things like 30-30 and 25-06 mean. What's the "-" for? I've also seen it written as 30/30. Is it the same thing? Also, is it true that the larger the caliber, the more power it has. ( Yes, I know it depends on bullet weight etc.) Would a .300 have stacks more power than a .243, and also more recoil?
Any help much appreciated.
Also....
....Here in UK, I've herd the 6.5x55 is an almost perfect deer round. Do you agree and why?