I bought a new Ruger MKIV and shooting Aguila it constantly jammed the first three rounds. So I tried using the Aguila in my Ruger MKII that I don't think ever jammed with any ammo I fed it but the Aguila jammed the MKII also.
I only use the Aguila in my revolvers now. People talk bad about Thunderbolts as being junky but they always fired instead of jamming the gun.
I will not buy anymore Aguila 22lr.