Patriot 1776,
On a prairie dog hunt, where hundreds of rounds are fired, I'd say yes, definitely wear hearing protection. I believe on a hunt for deer, where perhaps one shot will be fired, I wouldn't bother with plugs or muffs.
At your range, with enclosed top & sides, never even stand under it without hearing protection if you want to hear when you're older. Even the common 22 LR is too loud to go without protection in a confined space.
Many old timers with 85-90% hearing loss will agree with me on this.