I use it extensively and purchase it by the case.. Like the OP, I had numerous cycling problems back in 2019/2020. At first I thought it was my gun because that is something I can control. Cleaned thoroughly after every outing, I was still getting cycling problems. After eliminating my gun as the problem, I decided to test the ammunition. I removed the barrel from my gun and tested each shell for fit in the chamber. If gravity did not do the work of fully seating the shell in the chamber when I dropped it in, I isolated the shell. Of 220 shells tested, 47 failed to seat in the chamber. I took a video of my efforts, sent the video by email to Score and talked to the owner on multiple occasions. He was immediately concerned, came up with a tooling solution to fix the problem and I have not had a cycling issue with Score ammunition since. For my efforts he sent me a case of #2 and a case of BB.
I continue to use Score. A Canadian company located in Carberry MB.
As a footnote to my testing, I also tested Challenger Ammunition (made in QC Canada) and found a high percentage of shells not fitting my chamber. I contacted Challenger and they were not concerned with my findings. I'm no longer a Challenger customer.
I no longer have a single shot semi. I test all my shells before I go hunting with them