Just wanted to post and intoduce my self. I'm 26 and love fire arms as well as the history of how and why they are what they are today. I enjoy anything that requires marksmanship. At this moment I own 1 rifle and 2 hand guns. My rifle is a S&W 15-22. I love this fire arm. It runs flawless aslong as you have CCI ammo going through it. Never had a miss feed or miss fire while running CCI through it... My rang(practice) Handgun is a sig sauer Mosquito .22. I did some research before i bought this nice hand gun and saw that some people where having issues and others where not. i decided to test it out. When running winchester HV .22 through it the gun would not cycle the slide back fully every time as well as there being duds 1 out of every 2 reloads... If you guys want to know the exact name of this ammo i will tell you. A friend of mine bought it for me when we were going on a range day... Any way, switched the ammo over to CCI Mini Mag .22 and the gun operates flawlessly. As far as .22 goes, i will not use anything other than CCI now... For home defense I have a .40 Taurus PT Pro DS 24/7.. Love this gun and the practice with the .22 transfers over to it nicely... hope to get to know all you guys a little better as far as learning new and better techniques .... I also am very into Airsoft as well as blow guns...