Brian - two questions:
1. A higher NRR number is better, correct? Reason I ask is, I looked at my trusty non-electronic Peltors at Midway at $18 with NRR 30, then at Peltor's "Tacsport" at $115 with NRR 20. That seemed discouraging, but the reviews of the latter one were great. Which leaves me confused. Is there a minimum NRR that is deemed "safe" for most ammo that we are likely to shoot in the U.S.?
2. Do you know of a vendor that gives great descriptions and comparisons among electronic muffs? I like to shop at Midway but in this case the information is insufficient - for example it doesn't say if the Peltors are digital (presumably the alternative is analog).