EC TUNER TEST B14R

[HartBurn]

EC TUNER TEST
Shimmed B14R / Eley Match
100yds / 2 shots per square-factory class target Then two 5shot groups with what seemed to be the best setting on open class target.

I’ve already lot tested with eley match and found what worked best which is what this tuner test is with. I’m not that pleased and plan to do additional testing. I’m going to perform the test again at 50yds just because it’s easier to group things vs at 100yds. I’m also concerned about my starting point.. I’m not quite sure if my starting point should be when the tuner is bottomed out OR when it’s flush with the muzzle adapter (as pictured below)
Further down the rabbit hole I go….

 

[walterg]

Those two 5 shot groups at the bottom are at 100yds right, and you aren’t happy with those groups? They look pretty good to me.

 

[1911Shootist]

Hornady Podcast ep50: Your Groups Are Too Small

 

[HartBurn]

Those two 5 shot groups at the bottom are at 100yds right, and you aren’t happy with those groups? They look pretty good to me.

Yes they’re at 100. I was hopeful for better but as long as I can stay within 1MOA consistently I shouldn’t complain!
More testing to follow.

 

[walterg]

Yea I think you are headed in the right direction. If I get under 1moa at 100 I’m happy and if I get 0.7moa I’m ecstatic.

 

[grauhanen]

With group size variation a regular thing, especially at 100, how can you know when the results are because of the tuner or because of the ammo?

 

[Paddyd]

I have the same tuner on a Savage 110FP in 308W. It is a consistently 1/2 MOA rifle with my loads. When I say 1/2MOA I mean it rarely will shoot over that unless something is off kilter in me setup.
What I've found about tuners is this.
They do make a difference in barrel harmonics and can shrink group sizes , BUT your ammo has to have low single digit SDs, temp stable powder, good primers, nearly identically prepped quality brass, excellent match grade bullets, an excellent barrel and your action needs to be tuned for extremely consistent ignition. Then there's the guy who's driving the rifle. Where and how you hold it is a huge factor that needs to be consistent. A whole lot of variables need to come together with a tuner OR those small groups you got playing with it today, won't repeat tomorrow. This is even more apparent with rimfire. Rimfire benchrest competitors are using the absolute best equipment with lots of those variables tuned out already before they add a tuner. They're shooting $30+ per box ammo in the same lot#
I'd be willing to bet you a $20 bill if you went out to the range next Saturday you'd end up with an entirely different set of results. Do they make a difference? Absolutely, but no tuner will repeat unless all the stars align and I haven't ever seen that.

 

[Csafisher]

With group size variation a regular thing, especially at 100, how can you know when the results are because of the tuner or because of the ammo?

The toooner crowd doesn’t like this question.