I have pair of NRR 30 gun mufflers but also put earplugs in as well for indoor range shooting. Outside I just use my gun mufflers only.Indoor or outdoor range? If it was an indoor range, that will make it seem extra loud. I've shot at an indoor once in my adult life, about a year ago. I was shooting a .357 which never bothered me outside, even at an open air range with a roof over the shooting area that I frequent. But in that enclosed room? That sucker was loud and the darkened interior made the muzzle flash intense.