i picked up a ISSC M22 off of a buddy and after taking it out and putting some rounds through it i am having a few problems. if i rapid fire the gun it cycles all 10 rounds with no problem. but if i actually take aim and fire one round at a time it is having problems ejecting and then every few rounds it wont feed. Ive read on other sites that they are ammo sensitive i have tried Blazer and Winchester ammo and both have the same problem. Does anyone have any suggestions or know anything about these pistols that could help solve my problem?