tuner alter your barrel ?

[dnellans]

Keep it coming guys - I love it!

If the same depth/charge is optimal both with and without the tuner, do most folks adjust the tuner “last” after doing traditional dev with it on a nominal zero setting?

 

[Bill Norris]

Keep it coming guys - I love it!

If the same depth/charge is optimal both with and without the tuner, do most folks adjust the tuner “last” after doing traditional dev with it on a nominal zero setting?

Erik Cortina suggest develop the load first with tuner/brake set at zero and adjust tuner last.

 

[Uthink Uknow]

I was Gene Beggs loudest critic when he introduced tuners to center fire rifles. We went round and round about tuners. I could adjust tunes with changes in charge. When Gene Beggs came out with his tuner I said I'd use a tuner when someone who had never beaten me without a tuner got a tuner and he beat me. Hal Drake came to the IBS Score Nationals in Wadsworth, Ohio with a tuner and he beat me. I finish second. Later that week, "Hello Gene? I need some tuners". The rest with regards to me is history. That's how long I've been using a tuner. A tuner works and is predictable. A Beggs tuner and now the ones that son Paul makes and market weight four (4) ounces. A move that sends the tuner .018 up or down the barrel can be seen on the target. This is why my mirage shield ends about four inches from the tuner and no closer. I once told Bill Calfee in rimfire that the material removed when threading a barrel for a tuner makes a big difference alone and he and I proved it.
And yes, Bill Norris, tune a load with the tuner on the barrel in a position about one full turn off the muzzle. Get a good load and group there. Make a note of the load and the atmospheric conditions at that point and then just twist the tuner in and out of tune. Easy Peasy.

 

[dnellans]

Erik Cortina suggest develop the load first with tuner/brake set at zero and adjust tuner last.

Erik also claims no load dev required with his tuner, so messaging on tuners is mixed at best

 

[Uthink Uknow]

Here are pictures of our tuners. One is mounted on my center fire BR rifle and the other is the adaptation for rimfire and air rifle which have smaller diameter barrels. The adapter is then tightened down with a set screw. In regards to the center fire rifle, you can turn an inch of the muzzle end down to a straight diameter and then thread for the tuner or small enough to press fit a collar on and then turn it to fit the tuner threads. If you look closely you might be able to see that this barrel was turned down and a sleeve was pressed on for the threading.

 

[jlmurphy]

I built a tuner on the exterior of a large Harrell's radial muzzle brake, threaded the brake and a one piece clamping shaft collar, stamped 12 numbers on the rear of the collar. I shoot a 6x47 at our local varmint shoot out to 600 yds. I am short on time, I work up the fastest safe load, 107 gr SMK .020" off the lands, go to the range early and shoot at a blank sheet of steel at 550 yds, I adjust the tuner less than 1/2 of a number each adjustment. The groups go from horizontal stringing, to vertical and diagonal stringing, to one nice circle, I stop when the group is under 1 1/2", half of the time I make no adjustments. I love to shoot against competitors with a plain muzzle brake, very similar to back when I was shooting my 6.5x55 Swedish against the 308, ALMOST like cheating. I took a break to shoot BPCR ( the best ), when I came back, everyone was shooting a 6.5 !!

 

[Uthink Uknow]

Do you have pictures of your tuner/brake Murphy. It sounds interesting.