+1 MN Hunter, I use the internal foam plugs and the external electronic muffs. I turn the muffs up and can hear range commands and visit with other shooters on the line. The electronic muffs cut out when anyone on the line fires, giving me double protection. When I hunt LR, my rifles have brakes, so I use the electronic muffs for protection.
To choose the correct muffs, I went to Cabelas and tried every muff they had, it took me 2 hours before I was happy with my selection. I chose the walkers game ear quad muffs.
It sometimes takes a little adjusting to get a muff set correctly to shoot a rifle. At least your opposite ear has double protection, if you have to slide your strong side muff up a little to get a good cheekweld.
Hope this helps,
AJ