Don’t forget salt. vitamins, supplements, medical supplies, and medicine.
Oats are more nutritious than rice and cheap as all get out.
I would suggest dividing your carbohydrate storage for variety. Wheat/flour, rice, oats, and even potatoes makes for a better diet than exclusively one of the four. Diet fatigue is a real thing. I'd put corn meal and perhaps barley on the list too, but the LDS doesn't have either available in their supplies, and they doesn't have a long enough shelf life for my taste (from any source I am aware of). Besides, I don't like barley and don't have any recipes where I would eat it today.
Variety is everything, with food and with other storage items. I love my shotgun for home defense. In the unlikely event of a longer-range encounter that poses an immediate danger so that I feel a need to participate, my shotgun is not going to be the best choice. That's long rifle time, whether AR-15 or something bigger with a scope. As for concealed carry, none of the long guns qualify - handgun time. Variety is everything.