Finally got to fire proper ammo through my new SIG 2022 yesterday (.40 caliber).
My first time with it, I used steel jacketed TulAmmo from Wally World. The gun performed awful! Empty rounds ejecting into my face and plenty of stove pipe jams.
Yesterday I put 100 rounds of brass jacketed ammo through it without a hiccup and no brass in my face.
What a difference brass over steel made. I know steel doesn't expand like brass does. I'm assuming that was the problem.
I was able to shoot good groups at 25 yards and even my son (12) and his buddy (13) had a ball shooting it.