Centerfire Barrel Tuners/ Muzzle Devices

[Erik Cortina]

The concept of a runner sounds very cool. And not just for the looks but the results I am seeing posted.

I would like to build a gun with a 32in barrel that 1.25in contour.
Any idea how heavy a tuner you would need for something like that?
While reading about the Harvey’s Hot Rod Anschütz BR-50 it seams like a stiffer barrel needs a heavy runner.

My tuner works great on 32" x 1.250" barrels.