Hello all,
I have just recently purchased an STI MatchMaster for USPSA. Despite different loads, I haven't been able to get the gun running. I have talked to a lot of experts, who have differing answers to my problem. When I try to fire, it will fire, and stop short of chambering the round. On the few occasions that the gun will cycle, you can feel the slide just barely pushing the round into the chamber. Upon examination, the disconnector on my STI Edge, has a curved profile that allows the slide to easily push it down. With my Matchmaster, if done carefully, I can actually rest the slide on the disconnector, and the slide will not fall. Many people will tell me that I need a heavier spring so the round will go into the chamber, some tell me that I need a lighter spring that will aide in the slide coming all the way back, and some will have other suggestions like bullet shape, OAL, and other things. If some of you have had this problem, I would like to hear your feedback. I would not like to send the gun back to STI, let it sit for a few months, and them calling me to say that there is nothing wrong with the gun. If any of you have any information or recommendations I would greatly appreciate it. Thanks in advance for all the help!