Re: Holland QD brake video - 200 gr. @ 3300fps
No tuning really needed. Installing is a different story. I just sent my barrel into Hollands and had them put the brake on. They did a great job and matched the color of my barrel to the brake. You could just order it from them and take it to just about any gun smith and have them install it though.
You can live for many causes, but you can only die for one. Pick that one very carefully.