I've been playing around with this lately and it gives great damage at all ranges (also a decent setup for me as a shotgun player). Why don't more rifle players use a shorty in the pocket?

I was unable to climb out of silver last act after about 50 games, this act I grinded about 120 games and was able to climb to diamond 1, I know this isn't crazy high elo or anything but this was a huge achievement for me that I wanted to s...