Lots of questions. I'll give it a shot, so to speak. /forums/images/graemlins/wink.gif
1) <font color="blue"> Looking for ideas on gun, shotgun, training tips, concealed tips, should I contact the local Sheriff & let him know? Call him first and let HIM help me with above questions?</font>
Just because someone is in law enforcement and carries a gun doesn't mean they know much about firearms. Unfortunately
most cops have very little familiarity with guns - of any type. Some do, but most don't. Your sheriff may or may not have much familiarity with firearms, so I would probably not consider him a good source to answer your questions.
It would be much better to find a firearms range that offers both basic training classes and concealed carry classes. Proper firearms safety, understanding the law and how it applies to you in your state, and teaching are their specialty - they get paid to know this stuff.
2) <font color="blue">I intend on getting a permit to carry concealed (presuming that’s allowed here). </font>
Yes, it's allowed.
Here's a cusory summary of Tennessee's gun laws.
3) <font color="blue">Any thoughts as to sidearm and shotgun, ammo (and why such & such ammo). </font>
Here's where the holy war will begin on TBN. Just like tractors, there are those who have brand/type loyalty that will get in the way of objective comparison. Some ex-law enforcment guys will be dead set against one type of firearm while other ex-law enforcement guys will not. We are all a composite of our experiences, but at the same time there is hard data to consider too. That being said, here are a couple of my preferences and views on the subject.
a) Revolver/Semi-auto - Both have benefits. Period. Both have drawbacks. Period. This has been discussed ad nauseam on another thread. The best comparison I have is Gear vs. Hydro. Some will say that Hydro is the best without question while some will say gear is. Then there are those like me who say both have their place and neither is the end-all/be-all of transmission types. Same thing with Auto vs. Revolver.
Best advise here is get some training on both and find which one you like. Just realize that it may take quite a bit of time before you feel comfortable using either type. Once you have picked, train, train, train. To the point to where there is no "thinking" just instinct. You can get to that point with either type.
b) Ammo - First you have to choose the cartridge. Based on my experience, various texts I have read on the subject (LOTS of data out there), and real-world one-shot-stop numbers (i.e. compiled data from law enforcement) in a handgun cartridge, two of the top performers are .357 Mag (125gr HP) and .45ACP (Federal Hydra-shok). In a shotgun, 12ga 00 buckshot is hard to beat. There are other good loads in different calibers, but those I mentioned are known for being good performers.
c) Concealment - Smaller = easier to conceal, but you sacrifice accuracy (shorter sight radius) and sacrifice cartridge capability (either in number of shots or power/size of the cartridge you are shooting.) The one thing is that the holster can make a world of difference. With an inside the waist band type holster, you can conceal a surprisingly large weapon (i.e. higher capacity/larger cartridge/longer sight radius) quite comfortably. Of course, due to dress (i.e. tucked in shirt, etc. ) that may not be a workable holster for you which may make it necessary to go with a smaller pistol and a different setup. The best advise here is try a number of holsters and have a variety for the type of carry situation you will need it for. Most CC people I know don't have just one CC firearm. When possible, they use/wear thier main handgun, but if it can't be done, then they downsize to a smaller/more concealable gun. The reasoning is that a smaller gun is better than no gun at all.
One last piece of advise - practice (a lot - not this twice a year junk like a lot of folks - that will only get you in to trouble) and read the laws FOR YOURSELF (don't JUST rely on what others tell you - no matter how big an authority they come across as)