Many shooters, especially new shooters, come to the sport with a double barrel shotgun. These are good guns that in the right hands can be made to run very fast, and they have very few parts to break when compared to a Model 97. There are some modifications that you will want to make in order to get the gun speed ready, but when you are starting out, this is a fine shotgun to start with.
In training, one of the things that you will want to practice is how you load the shotgun. There are two areas that cause you to lose time with a double, loading and getting rid of the shells. If you can minimize the wasted time in these areas, you can make big strides in where you end up in the standings.
The following video will help you prepare for how to use this gun effectively.