CA MPR Muzzle break ??

[bahabill]

Christensen Arms 300 PRC MPR Chassis.

OK sorry to sound ignorant but I have to ask.......
The 4 holes on top of the CA MPR muzzle break have allen key plug screws.
What is the reason for these ???? What do they do or adjust for???
I have heard they tune in HARMONICS ??
I have heard that they stop muzzle rize???

Please educate me.. Gun shoots .5 moa all day long but if i can tune in better would be great.

 

[FEENIX]

Christensen Arms 300 PRC MPR Chassis.

OK sorry to sound ignorant but I have to ask.......
The 4 holes on top of the CA MPR muzzle break have allen key plug screws.
What is the reason for these ???? What do they do or adjust for???
I have heard they tune in HARMONICS ??
I have heard that they stop muzzle rize???

Please educate me.. Gun shoots .5 moa all day long but if i can tune in better would be great.

Yes, these type of muzzle brakes gives you the ability to tune your barrel harmonics to your load. You need to play around with it and find the sweet spot, plug, unplug type, and play.