That's my reaction to my own Bess. While it functions well with less, it's a lot of gun to carry for small charges. It does better with large charges than my others, so why not relegate it to that roll.
BTW- My standard load is 1 5/8 oz of shot over 120 grains of Goex 1f, and prior to trying the 1f, 100 grains of 2f.
There are folks around putting that much shot and even more in 20 gauges, but they're clanking heads on standing turkeys, while mine is strictly for flying/running small game.
How much shot and powder could a turkey hunter load into the much larger Bess? Don't know, and don't want to know.