With a good load, the 38-55 should be viable on most pigs at 50 in a 16-inch barrel.
The short length makes it handy in brush.
Just remember that you will be losing velocity & terminal effectiveness in going that short.
And- you'll need to make that shot count, since you'll only have one. By the time you reload, the animal will be either dead or gone.
Up to you if it's worth it for your purposes.
Denis