I wasn't comparing 1 oz. loads against 1 1/8 oz. loads. I was comparing all of the 1 oz. loads against each other and all of the 1 1/8 oz. loads against each other. NOW go down the list of each and compare them and you won't see that much difference when you have a primer change. I would be willing to bet that if I loaded a decent trap gun with the exact components and changed only the primers, most people would never notice the difference. Especially from a Winchester to a Remington. Most people at my club change from a Winchester to a Remington and think nothing about it. Or from one of those to the (very economical) Fiocchi, and don't even think about it. (The only bad thing about the Fiocchi is that they enlarge the primer holes because they are larger in diameter). And how many pounds of pressure did it take the guy in the DGJ to blow up a gun in his articles? Wasn't it 24-25,000 PSI? Wasn't that with a damascus shotgun? So, look at the reloading books and see what the highest pressures are. 10-11,000 PSI? You should be pretty safe in a modern day gun with those pressures. Now if you are reloading for an older gun or a damascus shotgun, then I would be more careful in keeping the pressures down.