2023 Season build

[charlie b]

Roflamo

[Fuj']

Back on track and getting a little rushed since my first match is in less than
2 weeks !! My lathe is down for a few bearing replacements, so I had good
friend, fellow shooter and gunsmith do some threading for me. On the Douglas
4 groove barrel is an Ezell PDT tuner. With this done, I'll be clearing off the bench
for the final dedicated build. Weather has been bad, so I hope to at least get my
load work done and play with the tuner at a latter date. Stay tuned. (Pun intended)

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[charlie b]

I have always wondered how well a tuner works and how you use it.

I would assume you work up a load to the vel you want and then adjust the tuner to get the node correct. True?

So, from before adjusting to tuner to getting it 'in the groove', what is the change in group size that you see?

Good luck at the range!!

[Fuj']

I have always wondered how well a tuner works and how you use it.

I would assume you work up a load to the vel you want and then adjust the tuner to get the node correct. True?

So, from before adjusting to tuner to getting it 'in the groove', what is the change in group size that you see?

Good luck at the range!!

Quite a few guy's and gals I shoot with have been using tuners the past few years. It's new to me, but I made
the jump. Seems pretty straight forward since you are basically changing the length of the barrel .001" at a time.
I spoke to Mike Ezell in depth which he prefers all customers do. In a nut shell, your work up your load before
adjusting the tuner. Once you find your accuracy node, you then adjust the tuner to take it out of the node then
adjust further to bring it back in. He showed me a target where the groups opened up and the vertical went low,
ans further adjustment showed a steady increase of the node coming back in with the shots being higher on the
target. He just says that the barrel timing is best to have the shots high on the target then low.....I'll be out to
the range this morning to get sighted in and the first batch of work ups. Tuner will stay screwed in until I find a
load for this barrel. No matter what you still have to do powder and seating tests the old fashion way.

[charlie b]

Thanks Fuj.

I wonder why it changes high and low, not left or right. Might go back to the theory about the nodes enlarging the barrel, changing the vel of the bullets?

Sometimes being an engineer sucks. I ask myself too many questions that have no way to get answers :)

[Dave Hoback]

Good luck with it Fuj’. Hope you get the results you’re looking for.:tea:

Barrel tuners aren’t appealing to me. Much like those who chase Action Screw torque values, barrel tuners also try to play with harmonics.

[Fuj']

Thanks Fuj.

I wonder why it changes high and low, not left or right. Might go back to the theory about the nodes enlarging the barrel, changing the vel of the bullets?

Sometimes being an engineer sucks. I ask myself too many questions that have no way to get answers :)

Drawing from Mike kind of explains what I mean. It's a sine wave formed. Depending on the muzzle position
when the bullet exits do to harmonics. He just recommends or prefers the high setting. This also helps the
distance shooters from extra elevation on the scopes.

Test went well. I'll try to get a few pics up later. Of the four groups during powder tests, One was a .131" and
one at .210". The barrel will shoot. On the the ugly side.....one at .420" and one at a nasty vertical of .700".
Another round of high winds and rain for the next few days will have me doing other things.9496

[charlie b]

Fuj, in 2 dimensions I understand that. But, the barrel is also vibrating horizontally. So, maybe there is something else here. I 'need' someone with a couple of high speed cameras to do some work here :) So, does the velocity curve look the same?

I still kinda laugh when seeing groups from really good rifles/shooters. I am a bit jealous and then I go and see where can I up my game to get better.

Glad yours is doing well. Always nice to see a new piece of equipment prove itself.

And thanks for answering all my irritating questions. :)

[Fuj']

DP

[Fuj']

A bit lacking in updates and our first UBR style match was about 2 weeks ago !!
Either way, I did get the Ezell tuner mounted up but no time for testing prior to
the match so I just grab known loads and went at it. Of a possible 264 for 4 targets,
I managed a 249 and a mid pack. Everything that kept the points lower were just me
and a rifle that needs tuned. No complaints on conditions. At the end of 4 relays, it
was switching but not above 4mph....One pic is my rig just going on the bench for
morning sighters. I need to shoot another pic of one of the targets. I'm on bench 7.

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[Dave Hoback]

Awesome shooting Gary! Are you the only competitor using a Savage? What are you seeing other competitors using?

[charlie b]

Nice work with a untuned system.

What do your targets look like? I don't recall a 66 point target before. Or, do you count the X as 11 points and shoot 6 rounds per target?

[Fuj']

Awesome shooting Gary! Are you the only competitor using a Savage? What are you seeing other competitors using?

In custom class there is another, but just a box stock 6br. In factory, there are several.
The full blown BR rifles are a large part Kelbly actions with a smattering of bat and Borden.
You'll also find that must of these actions on the line are glue ins.

[Fuj']

Nice work with a untuned system.

What do your targets look like? I don't recall a 66 point target before. Or, do you count the X as 11 points and shoot 6 rounds per target?

Charlie....Look up "UBR" Unlimited Bench Rest. Trying to post a target but keep getting error messages ??
But yes, 6 shots per target, with unlimited sighters. Center dot is scored as one point giving you a possible
11 points per bull.

[charlie b]

Makes sense. I was also happy to see the caliber targets. That makes a lot of sense in this area as well.

[Fuj']

Target second relay......9528

[charlie b]

Nice!

[Fuj']

Changing things up a bit....With the evolution of my LEGO rifles, rests are included.
I'm converting to a 4" wide fore arm, and had to do the same with my T-Rex rest.
The Rodzilla T-Rex is not 4" capable.....With machining a new aluminum plate and
adding my extra set of Bald Eagle side bag tensioners, It is now !! I made a 4" rider
plate to bolt on to my 3" front. It's removable just in case a certain event has a rule.
I mainly shoot unlimited. It is what it is....Tensioners are maxed out just to hold the
new piece in place.....

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[Dave Hoback]

4”… WOW! Pretty neat. I could see that being helpful for me, being I can’t use my left arm/hand to hold the rig in any way. But I’ve always just been a simple bipod shooter. Since I’m 18 that’s all I’ve used. Almost seems mandatory to me know, LOL!

Oh… and I could never even think of putting out that kind of money for a gun rest. I understand they are involved, but at like $2,000 for those, in my mind it would be like a bolt knob costing several hundred $$, LOL!

[Fuj']

Dave....A big chunk of change for that rest was courtesy of the Pa. property tax rebate program
for us Seniors. Once your over 65, own property and pay all the taxes on it, Your entitled to
a fat rebate. So every July, It's Christmas for my shooting habit. I was looking at a Lenzi but
almost a years wait. The T-Rex was 6 months or sooner. I lucked out and had it in a month.
This years check went for a CZ-457 AT-One rimfire for the grandson.

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