Tuner Settings

E

ehkempf

Guest
I have a question about tuner settings. I have a Anschutz 2013 BR-50 that I equipped with a Harrel Tuner. I am using a supply of Eley BR-50 ammo and have got what I think is a fairly good tune job, although it was had to beat the group sizes without the tuner. My question is this, when I finally run out of my supply of Eley BR-50 will I have to go through the tuning process with what ever ammo that my rifle likes all over again. I have asked this question at our club and got answers like once it is tuned it is always tuned, no matter what ammo you use. I have also been told that the tune is specific to the ammo that you are shooting at the time. Is there a real answer to this question that most believe to be true? My personal belief is that logically different ammo will require specific tuning, because of different burn and ignition rates, and even due to the difference in bullet lubes.


Thanks,

Ed
 
Baloney! Although in some rare instances some guns will shoot a variety of ammo with the same tuner settings, you can expect to have to retune if you switch to a different make of ammo (Eley vs. Lapua) or ammo with different velocities.
 
It might indeed need a few clicks on other ammo.But it is near your present tune position.That's what I experienced.Changing from Eley Match eps to Lapua center-x took 2 clicks.I now shoot rws r-50 and that is in the same tune as with Lapua.

But I did click more to find out:a turn more and less as the previous setting.

Tuner is a Cicognani fat1 on an Anschütz 1913

The search for best groups is half the fun!
 
More grist for the mill

I thought most folks had decided that the tuner settings and and addition of weights were used to effect the vibration such that the muzzle was still when the bullet left the bore of the rifle. My experience using an Anschutz 2013 with a Benchmark two grove reverse taper barrel was that one setting worked just fine with different lots of Eley Match EPS and Eley Club EPS.

Having said that, what is the effect of adding the 8 oz or 6 oz (long or short) J&J Slide to the end of our tuners? Adding that much weight must totally destroy the effect of tuner settings--or does it. My gut feeling, and that's all it is, is that the slides positively effect bullet stabilization and/or dampen barrel vibrations; and that playing with the tuner settings doesn't do much.
 
My experience has shown that adding the short slider to the end of the tuner requires resetting the tuner....but its only a few clicks different. Without the slider attached I find and record the best tuner setting(s) (there is usually more than one "good" setting ie one rifle likes either 204 or 367) then add the slider and start at the same setting and it will show best within a few clicks of the initial. The slider adds a bit of weight so your poi will change, but that is what turrets are on the scope for. As an example I did a rifle test today. A Suhl with a Shilen barrel and tuner only best was 245 and with the short slider the best was at 260. This rifle also wears a mid barrel dampner placed 31.3 mm from the front of the tuner. Your rifle will tune differently. bob finger
 
Here is something i read last night on Varmit Al's Web Site that shed some new light on tuners for me. It makes me understand what "tuning a rifle" means. Probably most of you already know this but it has cleared up a "grey area" for me.

I don't think i have ever read this definition what a "tuned rifle" does. joe:)

TUNERDOES.jpg
 
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