Well pal, you've got a bigger house than I do! If I shoot from the hallway though the kitchen I might get a 30 foot shot in my ~2000 square foot house. Even at that distance it has about a 4-6 inch pattern though that is the point at which it starts opening.
You have a 30 foot shot in your bedroom? That's intimating you have a 500 - 1000 square foot bedroom. I worked construction for years in the 80's and saw some big bedrooms but 30 feet wide? Sheesh!!!!! maybe with trusses...