My First Tuner Test

[Ccrider]

About six months ago I bought a used barrel with a Woolum tuner on it from of the site. After weeks of trying for consistency with my Bat 3l, I decided what the heck, I might as well spin the barrel off and give the barrel with the tuner a try.

I did no load work up to speak of. Just measured hard jam, backed off .01 with plans of working back into the lands. Tried three charge weights, and went with what shot the best.

The Woolum tuner has 20 notches on the fine adjustment bezel. I intended to start at what I called zero and work all the way around going clockwise shooting three shot groups. I failed to realize that the fine tune bezel was adjusted in. I could only turn 9 notches clockwise and it bottomed out. So, I shot 0-9 turning clockwise.

I went back to zero and started working counterclockwise 1-19.

This took several days of shooting mostly in the afternoon with hot temperatures (90 degrees) and little wind.

After I finished, I chose “1” as what looked like the best in tune position, loaded 11 rounds this afternoon and gave it a go. (Red box)
The results are self explanatory, although I am not sure how to interpret them and put the to use. I do know this barrel will shoot, and “1” is in tune.

 

[Ccrider]

Here is a picture of the tuner on the barrel. I used the red dot for zero.
Shooting 68gr Bart Avengers and N133.

 

[BartsBullets]

Looks like you’ve got it Humming! Good job!

Bart

 

[urbanrifleman]

Now I want a tuner. Uggh. Thanks man... haha

 

[Ccrider]

Now I want a tuner. Uggh. Thanks man... haha

You are welcome. May I suggest you find someone with a barrel for sale that shoots bugholes with a tuner on it. And brass already prepped. Makes things much easier. Then all you have to do is figure out a load.

 

[Capt. Oblivious]

Crazy accurate barrel that

 

[Ccrider]

Thanks. It is the most accurate 6ppc I have. I am not sure if the tuner just help me tweak the load more or if the barrel is just better.

 

[gunsandgunsmithing]

Thanks. It is the most accurate 6ppc I have. I am not sure if the tuner just help me tweak the load more or if the barrel is just better.

IME, a tuner doesn't make a perfectly tuned barrel "more perfectly" in tune but it does allow you to maintain that peak level of tune, all the time. In some cases groups may improve but I feel like it is because it wasn't really perfectly tuned to begin with. The tuner gave that last little bit.