I couldn't find an answer to this question in FAQ's. I'm taking my 12 ga Field Grade waterfowl hunting this year. The gun is in fine shape with good wood behind the locks, no cracks and no oil penetration is evident. The gun handles field loads just fine. My question is what is the lowest pressure Bismuth load that would be safe in the gun. Thanks for your answer from all of us taking our Elsies to the blinds this year! Jim T