phonejack said:A long time ago I had a super blackhawk barrell shortened to 5" and magna ported.
Here's what I learned.
1. For the porting to work, you have to use full power loads. Less powerful=less the porting will work at reducing muzzle flip.
2. People on either side of you at the range will move away.
3. WITH FULL POWER LOADS IT IS UNGODLY LOUD!
Earplugs and muffs are a good idea.
It was a mistake for me, wish I hadn't done that to a perfectly good pistol.