New Bartlein Barrel receivedTuner Questions/discussion

[Hi-NV Shooter]

Thanks for the info. I noticed POI shift but with my .22 inexperience I was looking for consistent round groups. I’m used to center fire were it was recommended to tune so the 30fps shot was a little high at 100yds and didn’t know how to read the info I was looking at. Much appreciated.

You're welcome, I hope this helps. you're not the first CF shooter who tried to apply CF application they are in some respects the same but most of it doesn't apply to RF

Lee

 

[TRSR8]

Lee, is one of the few guys here shooting match rifles in matches to a good standard and is spot on assuming one big factor……if you have a great barrel, which is a big if.
I have shot RFBR many years at a decent level, shot ammo from 1040’s to 1070’s….lnever move the tuner…ever. Most guys chasing tuner settings either don’t have a good tune to begin with or simply have a marginal barrel.
one caveat here I would factor. I would never attempt a final tune in those temps. Go through the process again when it warms, I’d have higher confidence when it hits 50+60 deg. May stay same or be very close.

 

[Hi-NV Shooter]

Lee, is one of the few guys here shooting match rifles in matches to a good standard and is spot on assuming one big factor……if you have a great barrel, which is a big if.
I have shot RFBR many years at a decent level, shot ammo from 1040’s to 1070’s….lnever move the tuner…ever. Most guys chasing tuner settings either don’t have a good tune to begin with or simply have a marginal barrel.
one caveat here I would factor. I would never attempt a final tune in those temps. Go through the process again when it warms, I’d have higher confidence when it hits 50+60 deg. May stay same or be very close.

Tim,
Absolutely you need a good barrel, learned this the hard way shooting used factory Anschutz's a couple drove me crazy because I didn't realize the barrel was just too worn or had damage.
as far as tuning in colder weather I have had great success as I believe the burn rate of the powder is much more stable when it is colder. my goal is to get a slower round to print at the highest point of the barrel's upward movement. I know Pedro once said he won't let the barrel get too warm as it will affect the shot, I don't if he was relating to the round sitting a hot barrel and changing the burn rate and thus the way it shot.

I know one thing in a match you start to doubt your tuner setting and think you need to adjust it then you already have doubt in your mental game and that's not good. I read as much as I could find on iR50/50 sporter as well as anything Calfee mentioned about them. I have to think if those rifles can be made to shoot without no means to make those 1-2 click adjustments, then one can do the same with a rifle and adjustable tuner. I know I have. it is about exact weight at the end of the crown I have no doubt.

Lee

 

[scclimber]

Lee, what kind of tuner are you using ? Curious of how many ‘clicks’ per revolution you have.

 

[Hi-NV Shooter]

Lee, what kind of tuner are you using ? Curious of how many ‘clicks’ per revolution you have.

I use Harrells tuners (500 clicks) most settings are under 100 my latest project is at 30 .900 24”
but I modify them so they weigh between 4.00-4.50 oz depending on the barrel’s contour and how it shoots bare barrel
I can post later what they look like

Lee

 

[scclimber]

So you don’t go finer than 1/5th of a revolution ? I just rebarreled and shot my first tuner test. Im trying to get some insight on how fine I should try to go.
Thanks for all the info.
Blake

 

[VLNBYR]

So you don’t go finer than 1/5th of a revolution ? I just rebarreled and shot my first tuner test. Im trying to get some insight on how fine I should try to go.
Thanks for all the info.
Blake

It depends somewhat on how much you are willing to invest in time and ammo and still keep conditions constant.

 

[Hi-NV Shooter]

It depends somewhat on how much you are willing to invest in time and ammo and still keep conditions constant.

I agree, right now, there's no ammo, so going by just 1-2 clicks out at a time is very unlikely. for the same reason I don't shoot more than 3 shots per adjustment conditions can change on you as you try and make adjustments.

Lee

 

[Hi-NV Shooter]

So you don’t go finer than 1/5th of a revolution ? I just rebarreled and shot my first tuner test. Im trying to get some insight on how fine I should try to go.
Thanks for all the info.
Blake

if you mean 1/5th being 5 clicks then yes, that is the most I use. when I find a promising setting, I will shoot it going out by 1-click to as much as 5 clicks out. I will also go in by 1-click adjustments as well to 5 clicks in.

trying to go by 1-2 clicks at a time IME is not needed, if the barrel won't allow a 5-clcik window then maybe the barrel is just not capable. again, I go by what I see bare barrel first. then decide how I will approach finding a setting. one other thing you need good consistent ammo when you first try and tune. trying to use sub-par ammo will be a tail chase you will never win. remember it is not that you're tuning the ammo but tuning the barrel or more correctly finding the correct bullet exit timing.

Lee

 

[Allen R]

I use Harrells tuners (500 clicks) most settings are under 100 my latest project is at 30 .900 24”
but I modify them so they weigh between 4.00-4.50 oz depending on the barrel’s contour and how it shoots bare barrel
I can post later what they look like

Lee

Why do you lighten them. Would love to see after you’ve modified them.

 

[Hi-NV Shooter]

Why do you lighten them. Would love to see after you’ve modified them.

I lighten them to give the barrel the best chance to reach the maximum height of the movement before the bullet exits the barrel. I found by doing this I broaden the window of different box lot speeds that will shoot same POA/POI
I did an impromptu test and using the same rifle tuned it with a standard weight Harrell's and then with a lightened weight difference was about 4-oz. this was done on the same day using the same lot of CX.
my tuning approach is based on how an iR50/50 sporter rifle can shoot as good as a rifle with adjustable tuner without any adjustments once weight is determined that is needed at the end of the barrel.

Lee

 

[foxguy]

Great Conversation on Tuners and Tuning.

 

[High Noon]

Lee,

Thanks for the great information and photos!

Lynwood Harrell is a good friend of mine, would you mind me contacting him and sharing your photos for him possibly making a new lightweight version of his tuner? If he would consider making them he could have the new ones all black anodized like the original model.

 

[Hi-NV Shooter]

Lee,

Thanks for the great information and photos!

Lynwood Harrell is a good friend of mine, would you mind me contacting him and sharing your photos for him possibly making a new lightweight version of his tuner? If he would consider making them he could have the new ones all black anodized like the original model.

I have no problem it’s still their tuner I just modified them
FYI I once asked about getting one made in titanium and was told cost would be crazy
Good luck hopefully they get it made

Lee

 

[VLNBYR]

Lee,

Thanks for the great information and photos!

Lynwood Harrell is a good friend of mine, would you mind me contacting him and sharing your photos for him possibly making a new lightweight version of his tuner? If he would consider making them he could have the new ones all black anodized like the original model.

I'm sure he has no idea that people are doing this. You will be doing him a big favor and opening the door to more business.

 

[Hi-NV Shooter]

I'm sure he has no idea that people are doing this. You will be doing him a big favor and opening the door to more business.

John, remember the old wasp tuners they made? I just took it a step further in weight reduction.
If they started to make them like I shown that would be great and good for their business

Lee

 

[TRSR8]

Given the success of their standard tuner and to an extent Stillers “ blueprinted” version with barrels .875”-.910” or so I wonder what that potential might be, especially given the fact that the preponderance of them would seem to be set either side of 200.

 

[VLNBYR]

They are a business....they make what will sell.

 

[Hi-NV Shooter]

Given the success of their standard tuner and to an extent Stillers “ blueprinted” version with barrels .875”-.910” or so I wonder what that potential might be, especially given the fact that the preponderance of them would seem to be set either side of 200.

it is an option for those who wish to experiment. just like adding a bloop tube.

 

[High Noon]

I had a really nice visit with Lynwood yesterday and sent him Lee’s information. Let’s see if they’ll make a new Wasp II.