Cortina Precision. muzzle device

[Bassfish1952]

Never tried one myself. I'm on the fence. Not sure I am a good enough shooter to credibly run a comprehensive test if I had the tuner. Some may find the following of interest.

https://www.youtube.com/watch?v=UFIimiBKZVs

Curious to hear the experience of others.

I look at a lot of his videos on YouTube . He has one on chasing the lands that I found very interesting . I am on another group on Facebook , I asked them about the tuner and had a reply from a guy that has used them and pictures of their shot groups before and after.
Worth a try , anything that can make me a better shooter within reason.