It certainly is true that a bolt action is not as fast for a follow-up shot as a semi, but with a little practice, you may be surprised at how fast you can cycle it. It is a generally accepted fact that bolt action rifles are more inherently accurate than pumps, semis, or lever guns due to the way they are constructed, and the reasons nchawkeye explained. In my opinion, the .243 is all the gun you need for your type of hunting, and a .270 is beginning to reach the upper limits of overkill for those Florida deer. I personally would not even consider any of the magnum cartridges for your type of hunting. What i would recommend you do is take a good, hard look at the 7mm-08 in a nice bolt action that fits you, combined with a good quality scope. Good bullet selection, an excellent cartridge for reloading, mild recoil, etc., etc. It is definitely worth taking a hard look at...........