If you loaded one box with 25 different loads from a good manual for your first 25 shots, then shot the next field with 1 oz Rio shells, the next field with 1 1/8 oz new AA shells and the last field with 1 oz new Remington shells, you would find that every shell will smoke targets if you do your job.
The difference between the best shells and average shells begins to show up at long range handicap and this difference may only be around one target per 100.
A good pair of eyes,,,a strightbarel,,,and a steady hand,,,,and any legale trap load should do it,,,,i have used every thing from 7/8 of # 9, IC choke at pop gun speed to 1 1/8 oz # 7 1/2 IM choke at warp speed and have had similer results ,,,WHEN I DO MY PART
tracyhunter- At the Dixie I used factory AA loads for about 1/2 of the program. I also used up some odd lots of Federal Top Gun and Rem STS I had around. For doubles I used my reloads. I can miss with any shell.