Never play football with a migraine. I did, with a helmet, and my ear has been ringing for over 20 years. Tinnitis (sp).
I have the molded plugs, which are custom fit to the ear and they work very well. Outdoor shoting is not hardly a problem. But indoors, they are not getting it done. In fact, I have placed ear protection muff over these plugs and it still bothers me. I say "it", because I believe it's actually the vibration and NOT the noise that's getting me. Honestly, one day, before shooting, I dropped the wooden broom and the handle hitting the floormade my ear ring worse for weeks and I'm not certain it ever returned to tbe previous annoying level.
I am at the point where a motor cycle helmet might be the best way to prevent additional damage (my hearing is above average still, BTW). for handgun, I would have no problem wearing a helmet. I'd wear a clown outfit if I thought it would protect my hearing. But for rifle, it could be an issue.
I would like possible getting an electronic set of muffs, but let me know what you think. I'll spend the money, if the product is worth it.
I have seen Pro Ears, on hennigshoots web site...I don't know.