Cheyenne Ranger,
Learning to shoot your long guns left handed is a good idea. You never know when having this skill in yer possibles bag will come in handy. It feels real wierd at first but with practice you can get quite good at it. You will have to use the "wrong" eye but it will help to close the right eye at first. Like any other new shooting skill, go slow enough to make the hits at first and let the speed increase when it's time. A couple of reasons you might want to shoot left handed are:
1, if you're injured.
2, folks are shooting at you, there is hard cover that requires that you shoot around the left side of it... and you don't want to get injured.
There's probably more reasons but those two were enough to get me to learn to shoot everything with both hands. One word of caution... If you shoot an AR-15 lefty, you will have a pronounced black smudge on your right cheek after about fifty rounds.... in some circles, this is seen as a badge of honor. :lol: