After picking it up last week it was field stripped and thoroughly cleaned and lubed with Mobil One synthetic. Slide was racked 200 times. Range today. 200 rds CCI Minimags - terrific, 100 rds Winchester Super X - terrific. Then 10 rds each of Winchester Bulk - horrible, Auila 36gr - horrible,CCI Velocitor - terrific, Federal Bulk Pack - great, Remington Golden Bullet - great. Had a couple of failure to fire but just recocked and they fired. I think I will be putting a lot of 22lr downrange. For me, I love my little Mosquito.