i assume that's for the barrels. they don't work well anywhere else. i put a 20 ga model 12 i got for my father in one today to take to the range and it was just perfect. think will give him that case too. i've had 12 ga sxs's in that barrel pocket but were splinter f/e models. i think i did get a set of 12 ga o/u barrels and f/e in it once and it worked but was too fat on the outside. it'd work better to not have that pouch. doesn't need both. but the way it's stitched in you'd ruin the case to remove it.
guess the calfskin one i got will be the same way. at that length it should make a dandy auto-5 case at least.
glad you liked them. i always get nervous recommending stuff as not everyone sees things the same way.
roger