So how safe is reloading? What are the chances of blowing up the house or yourself? (Without doing something stupid like smoking while reloading and flicking the ashes in the gunpowder.) How hot can powder and primers get before becoming dangerous? What about pressures added to the summer heat? How easy is it to accidentally discharge a round as you try to push in the primer?
How safe is the hand reloader that Lee makes?
With any reloader, do you have to worry about static electricity from the TV?
As you can see from the questions I have absolutely no clue about reloading, so one last question.
Are there classes you can take to lear how to reload?
I have reloaded for 30 years and still have most of my fingers and one eyebrow.
Reloading is very safe if you use common sense safety measures.
Begin by buying a reloading data book. I have several but use the Sierra Rifle and Handgun Reloading Data book most.
The better ones have safety instructions on reloading and will give you some idea of how to safely proceed. Sierras reloading section is 83 pages long and gives a very good basic idea how to safely reload. The bulk of the book is reloading data on a ton of different calibers and bullet weights.
You can purchase a Basic reloading kit from many manufacturers. RCBS as well as many others have kits for around $140.00 that contain everything you need to start reloading except the die set for the specific caliber you want to reload.
The process is this: you place a shell casing in the loader with a forming die and pull the handle. The die both forms the case to the correct shape and size and knocks out the spend primer. You then can place in a new primer in the case using the primer arm on the press. The primer is encased in the primer arm and cannot blow up if proper seated. Even if improperly seated it will just crush the primer without detonating it.
There is no powder in the newly primed case so nothing can blow up
You then put the gun powder in the case using a scale that comes with the kit to measure the powder or a purpose built powder scoop as Lee makes.
Using the second die you place the bullet over the case and pull the loader arm down and vola! The complete bullet.
Some calibers require a third die to widen the mouth of the case to accept the bullet.
Powders and primers should be kept away from heat. Don't store them near the water heater or in the trunk of your car in the summer. I keep my powder on a shelf in the garage. I have not heard of any problem with static electricity setting off gunpowder though is suppose a direct lightning strike woud do it.

I do a lot of 3-gun and pistol competition and cut my cost to about half by reloading my own.