I have used the Fiocchi ammo, it tends to be very waxy and the 1022's at the club needed to be cleaned too much with it, so as I am the armourer I stopped getting it.
I recently took delivery of 50,000 rounds of Aguilla which works well and no wax.
In my own 1022 which I use for rabbit shooting I've been using CCI subsonic HP Segmented.. Winchester subs hp RWS hp and the cheapest was the Remington
For target shooting the RWS is really hard to beat.
Did purchase a box of Federal bulk but it does not group too well.
For high velocity the Remington yellow jacket and Viper seem really great