Started out with 13 Winchester and Remington 2 3/4 slugs that were over ten yrs old. then 20 rio slugs that state 1410 fps. then fifty win, high brass 1 1/4 oz 5 shot. Left over was 50 rds of ancient federal low brass game loads, (One box had a $1.84 Kmart sticker) started on gas position 1 and fired away. then i had 2 high brass over 3 low brass $1.84 feds. failure to eject on the first federal. Switched to position 2 and all cycled great! this saiga was made this spring and has a metal thread protector. got really nice group out of the rio breneke slugs, good day!