When I first started shooting, just a regular set of muffs. Then got into IHMSA compitition. Try standing under a covered firing line,15 shooters, 5 shots each in 2 minute's. Smallest caliber might have been a .357. Most were 10'' T/C's, in 7tcu,30/30's, and alot of XP100's, in 7br or .308. HUH, what ya say.
Didn't take long, and I had some German artillery ear plugs, and I also used a set of Peltors that were the highest rating I could find. I found out, that if I used that combo on the rimfire line, it helped my concentration out, and my scores increased. gypsyman