The winchester or federal 100rd sleeves are good clays ammo for the price, look for 71/2 or 8 shot. Most trap ranges state 7 1/2 is the largest you can use. ATA rules definately state it, but you would not be shooting registered targets with that gun anyhow.
A good target/practice load will be
2 3/4 inch
2 3/4-3 1/4 dram equivelant
1 1/8 oz 7.5 or 8 shot
1145-1200 fps velocity
The winchester and federal sleeves fit in that description. Have Fun and wear hearing protection!!!
perfect thanks for that information, it sounds like the 100 count value box description at crappy tire from what i remember.