I had problems with light primer strikes on my Q Mini Fix purchased 12/2021. Federal GMM primers fired fine but no go on any CCI450s. I sent an email, had a prompt reply, sent it out with a return label provided by Q. It took a little longer than I would have liked, received my Mini Fix after a couple months.
Upon receipt, all FGMM and most CCI450s would now fire. With the help of a friend, I traced the remaining CCI450s that would not fire to a recent batch of brass I had sized improperly after installing a new quick change plate on my Co-Ax press. I had inadvertently bumped the shoulder back around 14 thousandths (due to the quick change plate being thicker and not adjusting my dies to compensate) on the CCI450 primed cases that did not fire. The quick change plate was a recent change to my press ( a couple months after sending my rifle back to Q) and the initial brass when I received the rifle was sized appropriately. After sizing a more reasonable 3 thousandths, all of the CCI primed cases fired. I have now fired around 300 rounds with zero issues.
I was quite frustrated initially with my purchase. However, now that it is sorted I absolutely love the Mini Fix. It is a great social firearm. People are drawn to it's looks and blown away by how quiet it is shooting subsonic loads. I am pretty into air rifles. My father mistakenly assumed it was another one of my air rifles when I was shooting it on the back porch. My nephew and brother's girlfriend were genuinely interested in shooting it as it was so quiet and had such little recoil. I have shot countless firearms around them before and this is the only one they have really shown any interest in shooting. We were able to sit under a covered porch, with no ear pro, and shoot steel in the backyard without a hint of ear discomfort. It did not disrupt other family inside the house. It made for a great day of laidback shooting fun.
So what exactly did they do at Q to take care of me? I am not sure. However, whatever they did, I am happy to say it fixed the problem.