I’m in the same boat when I hunt on base. I went another route because those slugs are so expensive and I kill so many deer and hogs.
I had a Savage 220 rifled, I never shot 200 yards anyway. Most of my kills are 80 yards and under.
I bought a Mossberg 500 Bantam and put a 2.5x scope on it. With the modified choke and the 20ga High velocity sluggers, I get an inch at 100 yards and the slugs are $4.99 at Academy.
I did the same with the Savage 220 Turkey, but ordered a modified extended choke to protect the end of the barrel.