Dope need to be trued after muzzle brake?

[Sil17sd]

Put a little bastard on my 6.5 cm and rezeroed the scope. My question is will your dope need to be retrued.

I took it to 675 yd. and it needs almost .3 mrad more elevation than what it took before. No I did not have the chrono going but I was shooting the same factory hornady ammo that I always shoot.

 

[SLG]

I'd be amazed if the lil B changed your MV in any noticeable way, but I'm looking forward to learning more/being wrong.

 

[rijndael]

IME, the addition of a brake only impacts the zero.

 

[SubOptimal]

What was the wind doing?

 

[FLIT67]

It would change the barrel harmonics. That could changes things a touch.

 

[FireInTheWire]

It would change the barrel harmonics. That could changes things a touch.

This ^^^

 

[Lowlight]

Hornady looked at this and found some small variations in Dope

common wisdom says, no effect if the Dope has been established, however that might not be the case, as noted above.