Aha! I spouted off without knowing the whole story. Pistol grip 12 ga. Unless you're a trained LEO, bad choice. Difficult to control and can break your wrist.
B U T .vision issues are usually aided by a shotgun. Point in the general direction and you're likely to hit SOMETHING. (Think, throwing a dart at a dartboard vs throwing a handfull of darts)
Hearing loss? Shame on you if you're not using hearing protection when practicing. You can get "Mickey Mouse" type ear protectors that have electronic decible dampers (increase your hearing kinda like a hearing aid, for hearing normal conversation, but instantly block high decible sounds (like a gun report) to a gentle "poof". Mine were on sale for $12.00.
And the .38 special will be as loud, or louder than your shotgun (shorter barrel, less attenuation, closer to your ears) well, anyway, louder.
And, if you're NOT practicing, but NEED to use the gun...then screw the noise and hearing damage...you got more pressing things to worry about.
I love revolvers, and I guess the site wouldn't allow it but I wish I colud see a picture of the new "baby".
NOW GET OUT THERE AND SHOOT IT! You wouldn't want to jump on the interstate without driving a few farm roads first. Find out what it does before you need it.