I shoot sporting clays with a Master Class shooter, who has had factory sponsors. Guess what his predominantly used load is?
If you guessed 7/8 oz of 8s, I'll hit the winner buzzer.

I shot the 10 ga. to back up Dean at that shoot and was amazed at the reach it had. It was after 3 stations that I saw it was a 20 ga.

I have been loading 7/8 oz of #8 for all my 12ga guns for years, started with skeet ,then sporting clays then trap. Have also loaded a lot of 3/4 oz 12ga but you can see the difference so I now stay with 7/8 oz.

John I believe it was the late great Leo Harrison who said about shooting 1 1/8 only because they wouldn't allow 1 1/4 ounces of shot. When you had averages like Leo had, every pellet counts. Of course Leo was about 6'5 and about 350 pounds. Imho, he was the greatest trapshooter ever.

I shot 1 oz for years at 16 yards and 1 1/8 of light 8's from long yardage (many years ago) at 25+ yards at handicap. If I missed, it wasnt due to the shells. I shoot 12ga 7/8 oz and 3/4 oz in 20 and 28 ga at SC's and they perform well.

Chuck, you are correct on the quote.

Also, I shoot 1 1/8 oz., 2 3/4 dram equiv., 1145 fps, loads in registered 16 yard singles. 1 1/8 oz., 3 dram equiv., 1200 fps, loads in handicap. And some combo of those in doubles. #8 shot for everything. For registered targets I prefer Remington STS, but also shoot RST trap loads, Winchester AA and Federal Grands. For practice I usually shoot Estates off the shelf at Walmart. And I will often use the Estates for my first shot in doubles.

I know that 1 oz. loads will break targets just as well as 1 1/8 oz., but since trap is 95% mental I go with the extra 1/8 of an ounce when the targets count. And if they would let me I'd go another 1/8. Anything to make me feel better. And as you know, 1 target can make the difference between Champion and Runner Up.

I will add that I know very few trap shooters who choose 1 oz. over 1 1/8 when they are shooting registered targets. Wonder how many 1 oz. loads they sell at the Grand?