Banish 30 claims 34 decibels reduction on a 308. Never measured it myself but I can shoot 7mag with it comfortably without earplugs. Recoil reduction is a big plus. Only thing is they can be a little unwieldy on a hunting rifle in a long action caliber that need a little more barrel. With a 24” barrel and the banish 30 full length it’s like toting an oar into the field.