Noveske: New Barrels - Disruptive Deep Flute (DDF) Barrel Contour - NOW ON SALE!!!

Reptile

Reptile

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DISRUPTIVE DEEP FLUTE (DDF) BARREL CONTOUR


The Disruptive Deep Flute (DDF) is an external barrel contour designed to significantly reduce primary (blast compression and expansion) and secondary (sinusoidal resonance) wave events in barrels, improving accuracy, reducing heat, and extending barrel life. Using data from the 2024 TACOM HO Finite Element Analysis (FEA) study led by Al Harral at Lawrence Livermore National Laboratory, Noveske’s Combat Systems Development & Support program launched an R&D project. The goal was to determine the optimal surface area per linear inch to effectively disrupt these wave events while maintaining the lightweight barrel contour already used by U.S. Special Operations personnel.


Disruptive Deep Flute (DDF) Barrel Contour | Noveske Rifleworks


Now available:

DDF | Noveske Rifleworks

noveske.com noveske.com
 
The new gen4 ambi billet lowers are excellent in function and quality, IMO. I’ve had various Noveske parts for decades and they’ve always been high quality. I realize there is a markup for the name though. But there are also a lot of high quality names out there you’ve never heard of that are also very expensive. Bottom line is buy what you makes you happy.
 
Reptile said:
DISRUPTIVE DEEP FLUTE (DDF) BARREL CONTOUR


The Disruptive Deep Flute (DDF) is an external barrel contour designed to significantly reduce primary (blast compression and expansion) and secondary (sinusoidal resonance) wave events in barrels, improving accuracy, reducing heat, and extending barrel life. Using data from the 2024 TACOM HO Finite Element Analysis (FEA) study led by Al Harral at Lawrence Livermore National Laboratory, Noveske’s Combat Systems Development & Support program launched an R&D project. The goal was to determine the optimal surface area per linear inch to effectively disrupt these wave events while maintaining the lightweight barrel contour already used by U.S. Special Operations personnel.


Disruptive Deep Flute (DDF) Barrel Contour | Noveske Rifleworks


Now available:

DDF | Noveske Rifleworks

noveske.com noveske.com
Click to expand...
I am reading a lot of marketing BS here.

Not clicking the link.
 

NOVESKE DDF CONTOUR DESCRIPTION​


1) Seven (7) Longitudinal Flutes
2) Standardized .980″ Outer Diameter,
150″ Minimum Bore Wall Thickness (Marital Condition)
(.228″ Depth for .224cal, .2185″ Depth for .243cal, .208″ Depth for .264cal,
and.186″ Depth for .308cal), and .125″ of rounded cut at depth
3) 25″ Maximum Width
4) Cut to Length of Barrel, Minus 1.050″ break for a .9375″ gas block journal
5) Total Surface Area per Linear Inch of Fluted Barrel:
a) .224 Bore Barrel – 4.0487sain (vs 3.06sain Standard Contour) +32.31%
b).243 Bore Barrel – 4.0891sain (vs 3.12sain Standard Contour) +31.06%
c).264 Bore Barrel – 4.1446sqin (vs 3.19sqin Standard Contour) +29.92%
d).308 Bore Barrel – 4.2362sqin (vs 3.32sqin Standard Contour) +27.59%
6) More accurate due to decreased sinusoidal resonance
(vibration effecting the stability of the bullet)
7).200% increase in cooling speed
8) 8% decrease in weight compared to our standard contour

ACCURACY​


Constriction of the barrel’s Second Moment of Area (axial flexion) by
increasing the barrel’s moment of inertia (structural/material resistance to
flexion), vastly reduces load irregularities translated from the barrel to the
projectile in accelerated transit down the rifled bore. This reduction in muti-axis
wave mode functions allow the longitudinal axis of the projectile to remain
better aligned with its velocity vector, thus decreasing precessional
instability and increasing trajectory resilience.


THERMAL DAMPING​

As a byproduct of the drastic reduction in vibration facilitated by the
Noveske DDF contour, transfer of kinetic energy into thermal energy as Variable
Heat is reduced by 10%, while the cooling speed of the barrel is increased
by 200%.

BARREL-LIFE INCREASE​

Material failure in barrels is caused by the exertion of a force impulse
where in the flexion derived by that force exceeds the material stiffness
provided by its temperature moment. The Noveske DDF contour reduces both
the flexion imposed on the barrel by the accelerated force impulse and
maintains a higher material stiffness due to its ability to maintain a lower
temperature, thus increasing barrel life well beyond that of standard
contour barrels of the same given metallurgy.
 
Reptile said:

NOVESKE DDF CONTOUR DESCRIPTION​


1) Seven (7) Longitudinal Flutes
2) Standardized .980″ Outer Diameter,
150″ Minimum Bore Wall Thickness (Marital Condition)
(.228″ Depth for .224cal, .2185″ Depth for .243cal, .208″ Depth for .264cal,
and.186″ Depth for .308cal), and .125″ of rounded cut at depth
3) 25″ Maximum Width
4) Cut to Length of Barrel, Minus 1.050″ break for a .9375″ gas block journal
5) Total Surface Area per Linear Inch of Fluted Barrel:
a) .224 Bore Barrel – 4.0487sain (vs 3.06sain Standard Contour) +32.31%
b).243 Bore Barrel – 4.0891sain (vs 3.12sain Standard Contour) +31.06%
c).264 Bore Barrel – 4.1446sqin (vs 3.19sqin Standard Contour) +29.92%
d).308 Bore Barrel – 4.2362sqin (vs 3.32sqin Standard Contour) +27.59%
6) More accurate due to decreased sinusoidal resonance
(vibration effecting the stability of the bullet)
7).200% increase in cooling speed
8) 8% decrease in weight compared to our standard contour

ACCURACY​


Constriction of the barrel’s Second Moment of Area (axial flexion) by
increasing the barrel’s moment of inertia (structural/material resistance to
flexion), vastly reduces load irregularities translated from the barrel to the
projectile in accelerated transit down the rifled bore. This reduction in muti-axis
wave mode functions allow the longitudinal axis of the projectile to remain
better aligned with its velocity vector, thus decreasing precessional
instability and increasing trajectory resilience.


THERMAL DAMPING​

As a byproduct of the drastic reduction in vibration facilitated by the
Noveske DDF contour, transfer of kinetic energy into thermal energy as Variable
Heat is reduced by 10%, while the cooling speed of the barrel is increased
by 200%.

BARREL-LIFE INCREASE​

Material failure in barrels is caused by the exertion of a force impulse
where in the flexion derived by that force exceeds the material stiffness
provided by its temperature moment. The Noveske DDF contour reduces both
the flexion imposed on the barrel by the accelerated force impulse and
maintains a higher material stiffness due to its ability to maintain a lower
temperature, thus increasing barrel life well beyond that of standard
contour barrels of the same given metallurgy.
Click to expand...


That’s a lot of words to say it’s a fluted barrel.
 
Reptile said:

NOVESKE DDF CONTOUR DESCRIPTION​


1) Seven (7) Longitudinal Flutes
2) Standardized .980″ Outer Diameter,
150″ Minimum Bore Wall Thickness (Marital Condition)
(.228″ Depth for .224cal, .2185″ Depth for .243cal, .208″ Depth for .264cal,
and.186″ Depth for .308cal), and .125″ of rounded cut at depth
3) 25″ Maximum Width
4) Cut to Length of Barrel, Minus 1.050″ break for a .9375″ gas block journal
5) Total Surface Area per Linear Inch of Fluted Barrel:
a) .224 Bore Barrel – 4.0487sain (vs 3.06sain Standard Contour) +32.31%
b).243 Bore Barrel – 4.0891sain (vs 3.12sain Standard Contour) +31.06%
c).264 Bore Barrel – 4.1446sqin (vs 3.19sqin Standard Contour) +29.92%
d).308 Bore Barrel – 4.2362sqin (vs 3.32sqin Standard Contour) +27.59%
6) More accurate due to decreased sinusoidal resonance
(vibration effecting the stability of the bullet)
7).200% increase in cooling speed
8) 8% decrease in weight compared to our standard contour

ACCURACY​


Constriction of the barrel’s Second Moment of Area (axial flexion) by
increasing the barrel’s moment of inertia (structural/material resistance to
flexion), vastly reduces load irregularities translated from the barrel to the
projectile in accelerated transit down the rifled bore. This reduction in muti-axis
wave mode functions allow the longitudinal axis of the projectile to remain
better aligned with its velocity vector, thus decreasing precessional
instability and increasing trajectory resilience.


THERMAL DAMPING​

As a byproduct of the drastic reduction in vibration facilitated by the
Noveske DDF contour, transfer of kinetic energy into thermal energy as Variable
Heat is reduced by 10%, while the cooling speed of the barrel is increased
by 200%.

BARREL-LIFE INCREASE​

Material failure in barrels is caused by the exertion of a force impulse
where in the flexion derived by that force exceeds the material stiffness
provided by its temperature moment. The Noveske DDF contour reduces both
the flexion imposed on the barrel by the accelerated force impulse and
maintains a higher material stiffness due to its ability to maintain a lower
temperature, thus increasing barrel life well beyond that of standard
contour barrels of the same given metallurgy.
Click to expand...
What is it made out of, what is the metallurgy thay are talking about?
 
"Constriction of the barrel’s Second Moment of Area (axial flexion) by
increasing the barrel’s moment of inertia (structural/material resistance to
flexion), vastly reduces load irregularities translated from the barrel to the
projectile in accelerated transit down the rifled bore. This reduction in muti-axis
wave mode functions allow the longitudinal axis of the projectile to remain
better aligned with its velocity vector, thus decreasing precessional
instability and increasing trajectory resilience."

Classic recipe for snake oil: use huge words that sound scientific but say nothing. Is there anyone on this site (starting with our resident Noveske fanboi) who can even say, in simple English, how "multi-axis wave mode functions" are defined, measured, or what effect they have on shooting accuracy?

Thought not.

Might this be a high-quality barrel that's better than the status quo? Maybe. Is it $800 better? Unquestionably not.
 
Picton said:
"Constriction of the barrel’s Second Moment of Area (axial flexion) by
increasing the barrel’s moment of inertia (structural/material resistance to
flexion), vastly reduces load irregularities translated from the barrel to the
projectile in accelerated transit down the rifled bore. This reduction in muti-axis
wave mode functions allow the longitudinal axis of the projectile to remain
better aligned with its velocity vector, thus decreasing precessional
instability and increasing trajectory resilience."

Classic recipe for snake oil: use huge words that sound scientific but say nothing. Is there anyone on this site (starting with our resident Noveske fanboi) who can even say, in simple English, how "multi-axis wave mode functions" are defined, measured, or what effect they have on shooting accuracy?

Thought not.

Might this be a high-quality barrel that's better than the status quo? Maybe. Is it $800 better? Unquestionably not.
Click to expand...
Insert Meme: "TAKE MY MONEY!!!"
 
Picton said:
"Constriction of the barrel’s Second Moment of Area (axial flexion) by
increasing the barrel’s moment of inertia (structural/material resistance to
flexion), vastly reduces load irregularities translated from the barrel to the
projectile in accelerated transit down the rifled bore. This reduction in muti-axis
wave mode functions allow the longitudinal axis of the projectile to remain
better aligned with its velocity vector, thus decreasing precessional
instability and increasing trajectory resilience."

Classic recipe for snake oil: use huge words that sound scientific but say nothing. Is there anyone on this site (starting with our resident Noveske fanboi) who can even say, in simple English, how "multi-axis wave mode functions" are defined, measured, or what effect they have on shooting accuracy?

Thought not.

Might this be a high-quality barrel that's better than the status quo? Maybe. Is it $800 better? Unquestionably not.
Click to expand...

Reminds me of this:

View: https://youtube.com/watch?v=ccnfHKZebRk


View: https://youtube.com/watch?v=-F-IHvF5OCA


Ps: Patriot was an underrated show
 
Reptile said:
Stainless steel. OK most likely 416R stainless steel. Has it been cryogenic processed? 416R is a good barrel stainless steel very accurate, corrosion resistant, however 4140 and 4150 chrome moly will last longer and ware better. The thing is everyone uses 416R stainless steel for there stainless steel barrels. So nothing new or diffrent there.
Click to expand...
 
Last edited:

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