Thread: Subsonic 22lr going supersonic?

I got a hold of some CCI subs to try out as the killwell stuff I had been using was so gungy after only 20 rounds I would have to flick the cases out with a knife as they wouldnt extract.

The first shot out of the box was very loud, thats odd I thought. I tried 1 more and it was another loud crack. The next one was a bit quieter then they settled down. I then got a callout so went and sorted the job out and on the drive back I was thinking perhaps some oil was left in the barrel and it dieseled until it was clear.

I shot 100 rounds in 2 sessions and in my last 20 another 1 was a loud crack.

Overall I liked the CCI stuff and no extraction issues over the 100 rounds. Am I right in assuming I went a little heavy on the oil last time I put it away or could it be poor quality control from CCI which I find unlikely as it was the first 2 but then that third one has me puzzled.