This is way too complicated. My Mossburg 500 with improved cylinder choke has 5 rounds of 00B. An elastic buttstock sleeve holds 5 more. It has slept under the mattress for years , I only shoot it every once in a great while. I play with a Rem870 for fun shooting.
If that doesn't do enough , it'll get me to my AR15.
I live in a house , not an apartment building , horsehair plaster , oak slat , insulation , 1-1/4 sheathing and clapboards for exterior walls. if I wreck both sides of the wall , it's me who has to fix it , but somehow I doubt that'll be my biggest worry by then.