MarvTheWetBandit, As I was scrolling through the shotgun world past posts, I happened to see your post regarding using Federal shells. From my experience, I have and shoot skeet with several of my Ithaca 37's. I found that none of my 37's like Federal shells. They will all jam up from time to time using Federal shells. I do not disagree with anyone that suggest cleaning a gun is essential and the most important aspect of owing a gun, I clean my guns religiously . However, I shoot skeet with friends on a regular basics and I only use Remington and Estate, as my 37 Ithaca's for whatever reason do not like Federal shells. I am not at all saying Federal shells are bad, simply saying that based off experience myself and my friends have had using Federal shells in our 37's, our 37's o not like Federal shells.