i use a rack that holds 6 each, made by browning (i think), got them at sportsman warehouse in the area where the safes are, since they are gone, i bet gm or cabelas have them, hold the guns upright next to each other, works great for me
i will go outside when possible, but living in indiana has that limited, so i go indoors, the above posts covered the pros and cons pretty well and i would agree with them, but when it comes down to waiting for decent weather to shoot or go inside, no question........INSIDE