Tone channel bore

[Sand Mountain Ducks]

Anybody ever experiment with different sizes other than 1/4" much? Was thinking about trying something a tad larger than 1/4. I know its done for competition calls but was gonna see if you guys ever messed around with it.

[stumpjumper]

What comp calls? 
Personally anything over a 1/4" is gonna require an engine instead of lungs especially on a comp call.


STUMP

[Theox]

Duck Commanders have some that are 5/16" but use 2 .14 reeds.

[Bob from Eames Custom Calls]

Your efficiency will really suffer when you start getting your tone channel over 1/4". Most cop call actually run the other way, 7/32" for most of the ones I've seen.

 Bob

[Dunkler]

Anybody ever experiment with different sizes other than 1/4" much? Was thinking about trying something a tad larger than 1/4. I know its done for competition calls but was gonna see if you guys ever messed around with it.

I recently switched to a 7/32" tone channel and I can tell you I can hold a hail call for days with this size over a 1/4". It take less air and seems to just be better in general.

[Bob from Eames Custom Calls]

Anybody ever experiment with different sizes other than 1/4" much? Was thinking about trying something a tad larger than 1/4. I know its done for competition calls but was gonna see if you guys ever messed around with it.

I recently switched to a 7/32" tone channel and I can tell you I can hold a hail call for days with this size over a 1/4". It take less air and seems to just be better in general.

 7/32" has it's disadvantages as well. It will cut your volume, which you can compensate for, but it also tend to drive the call up in the tonal range, making the bottom end more difficult to run effectively. I use it for some of my comp style calls, and for some of the "squeeky hen" type timber calls, but for most of my stuff I much prefer the 1/4" bore. You have to be carefull not to design a call that takes a comp caller to run, as in turn it can make it too hard for non-comp guys to run.

 Bob

[Dunkler]

Anybody ever experiment with different sizes other than 1/4" much? Was thinking about trying something a tad larger than 1/4. I know its done for competition calls but was gonna see if you guys ever messed around with it.

I recently switched to a 7/32" tone channel and I can tell you I can hold a hail call for days with this size over a 1/4". It take less air and seems to just be better in general.

 7/32" has it's disadvantages as well. It will cut your volume, which you can compensate for, but it also tend to drive the call up in the tonal range, making the bottom end more difficult to run effectively. I use it for some of my comp style calls, and for some of the "squeeky hen" type timber calls, but for most of my stuff I much prefer the 1/4" bore. You have to be carefull not to design a call that takes a comp caller to run, as in turn it can make it too hard for non-comp guys to run.

 Bob

That's why this forum is great. I do have what I consider the sweet spot found on my river mallard jig for both 1/4" and 7/32" tone channel bores. I have found what I believe to be the ideal exhaust flare as well for both sizes. I agree with you that the 7/32" cuts the volume down a little and It does drive up the tonal range of the call, but the fact that it seems more "stable" I guess with long ringing hail calls and still has enough of the bottom end grunt to get a super nasty quack (especially as a double reed), has got me turning most of my calls as 7/32" lately. I wound up making a blind mandrel from a chainsaw file with a 1/4" shaft collar chucked up in a drill press chuck on the lathe, it works flawlessly.

[pete woolley]

Dunkler, you're a genius.  I never would have thought of the chainsaw file.  I've only got about 50 dull ones laying around.  That solves it.

Now if I could find a 6" long 7/32 bit that didn't cost $23.

Thanks,

Pete

[Dunkler]

Dunkler, you're a genius.  I never would have thought of the chainsaw file.  I've only got about 50 dull ones laying around.  That solves it.

Now if I could find a 6" long 7/32 bit that didn't cost $23.

Thanks,

Pete

Haha! That's awesome Pete! Glad I was able to help!

[dogcatcher]

Everyone needs a set of these http://www.harborfreight.com/28-piece-transfer-punch-set-3577.html

Nice and cheap set of transfer punches, easy to use as blind mandrels, impromptu mandrels, and as there intended use of marking drill points.  To use as a mandrel, I prefer using the drill chuck in the headstock.  I actually bought about 4 sets of these and have modified quite a few for special use mandrels and punches.  At $10 a set, it beats buying all of the sizes of drill rods for every thing I come across that I want to do.

Marvin

[Sand Mountain Ducks]

What comp calls? 
Personally anything over a 1/4" is gonna require an engine instead of lungs especially on a comp call.


STUMP

I believe I read that on the RNT website on their description of their MVP.

[stumpjumper]

What comp calls? 
Personally anything over a 1/4" is gonna require an engine instead of lungs especially on a comp call.


STUMP

I believe I read that on the RNT website on their description of their MVP.

MVP has a 1/4" tone channel.  You may have mistaken them saying it has an open bore over the original...that would be the exhaust

STUMP

[pete woolley]

Those transfer punches are a great idea.  Even though we're feeding our trade ibalance with China....I'll be getting a set.  They'll really be great for predator calls too,

Thanks for the tip.

Pete

[Bob from Eames Custom Calls]

What comp calls? 
Personally anything over a 1/4" is gonna require an engine instead of lungs especially on a comp call.


STUMP

I believe I read that on the RNT website on their description of their MVP.

MVP has a 1/4" tone channel.  You may have mistaken them saying it has an open bore over the original...that would be the exhaust

STUMP

 Hey Bud,

 I'm not sure about yours, but my MVP has a 7/32" tone channel bore. Now it's the old toneboard, but I've measured it a few times when I was set on making my own Comp calls.

 Bob

[Dunkler]

Everyone needs a set of these http://www.harborfreight.com/28-piece-transfer-punch-set-3577.html

Nice and cheap set of transfer punches, easy to use as blind mandrels, impromptu mandrels, and as there intended use of marking drill points.  To use as a mandrel, I prefer using the drill chuck in the headstock.  I actually bought about 4 sets of these and have modified quite a few for special use mandrels and punches.  At $10 a set, it beats buying all of the sizes of drill rods for every thing I come across that I want to do.

Marvin

Ordered a set! Thanks Marvin!