Sure with Howard Leight you can hear when people talk but it's not nearly enough protection for even a rifle. When I do use mine, it sounds like they are shooting beside my head if people are sighting in a rifle in the pistol area.
I'd recommend something that is 32 NRR (noise reduction rating) The Howard's are only 18 NRR or 22 which is not very much at all. I also have cheap tasco passive muffs and they are amazing. Even having somebody shooting magnum calibers beside me is no problem and it's only 28NRR so 32 NRR would be even better. I'd search Amazon and read the descriptions.