Trading stocks is a bit like shooting a gun: most anyone can do it but you have to spend some time and effort to do it well. The best advice I can give you is to buy this book:
How to Make Money in Stocks: A Winning System in Good Times and Bad,Fourth Edition: William O'Neil: 9780071614139: Amazon.com: Books
The author is a well respected, some would maintain legendary investor, who is the founder of the daily newspaper Investor's Business Daily. The book looks at the greatest winning stocks of all times and identifies characteristics similar to all. There are many systems out there and you need to find one that works for you. Worst case scenario is you buy the book and are out ten bucks.
With respect to purchasing stocks atm, the market is in a correction and (in my opinion) the safest place to be is in cash. It might jump back up to new highs, it might fall significantly lower. I donít know anyone who has a crystal ball.
RGR had a big run up earlier in the year when they announced that they had quit taking orders for guns until they caught up with their backlog. The stock has fallen since hitting a new high and is sitting at 21.12% off that high. Its EPS is rated at 99 (highest possible) and they have a relative strength of 81% which means that the stock is outperforming 81% of listed stocks. None of these facts represent a call to buy.