Structured Barrels

“Incoming fire has the right of way." - Unknown

Fallen Angel, Dimples, and Sandblast Finish

Breather ports and reduced contouring

INTEL

“You feel it’s different. You feel it doesn’t whip, it doesn't jump. It’s dead.” – Eduardo Fontcuberta, Master Sniper Instructor

  • Harmonically dead
  • Require little to no load development
  • Increase barrel life
  • Machined from a solid, barrel blank
  • Patented
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Harmonically Dead

“It's different (...) I track a lot easier on target.” - Paul Phillips, 3x World Champion and 2019 Ko2M Champion

  • Harmonically treat any barrel with three industry-new aftermarket finishes
  • Structuring, a deep hole drill pattern around the bore resists sinusoidal harmonics via axial compression
  • - As one hole bends, one side of it undergoes tension and the other compression
  • - This triggers the hole opposite of it in the pattern, to undergo compression and tension, 180 degrees out of sync
  • - Opposing force vectors cancel out
  • - Structuring is not a sleeve to prevent different thermodynamic expansion coefficients
  • Fallen angel, multi-directional threads cut at varying lengths and pitches resists surface translated harmonics
  • - Also creates a high desnity fin count to dissipate heat for harmonics rapidly change with temperature
  • Dimples, cores offset perpendicular to Structure resist harmonics generated from rifling and the chamber
  • - Also extracts lbs from the barrel while maintaining maximum strength around chamber
  • Harmonics propagate efficiently through uniform material structures
  • Structured Barrels alter the homogeneity of barrels to eliminate harmonic translation section-to-section
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No Load Development

“It is totally dead (….) It is just a straight back push (...) no vibrations (....) You can run any kind of ammunition in the barrel (...) different kinds of ammo, brands, [and] weights (...) We were running 120s, 130s, and 140s [in a Remington 260 AR-10], and we were (....) putting all the different loads in the same hole – that’s weird.” – Rex Tibor, Rifle Specialist

  • Save time and money working loads for any caliber
  • Structured Barrels moment of inertia result in an incredibly high harmonic MODE and small NODE
  • - MODES are a function of material stiffness (modules of elasticity), mass distribution, and structural stiffness
  • - NODES are isolated in load development and is a derivative of its harmonic MODE
  • Shoot vertical strings loading up to 10 gr spreads in 1/2 gr increments for velocity variances
  • Print sub 1/2 MOA groups using different bullet weights from different manufacturers
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Structural Analysis

“This barrel is very different than any other barrel I have shot before.” – Derek Rodgers, Team USA World Champion

“I shoot the very same XLR chassis with the XLR forend, and there is no comparison with this [Structured .375 CheyTac] weapon. I have never shot anything like it.” – Jeff, Team King Cobra

  • Evaluated a 32" .375 Structured and standard barrel of the same weight
  • Calculations from aeronautical program CEL (Combined Eulerian and Lagrangian)
  • OD of Structured Barrel, OD of inner tubes, and number of tubes assumed at 1.95", 3/8", and 8, respectively

Stiffness

56% Stiffer for the SAME weight
  • Structured Barrel

    OD: 1.950"

    Moment of Inertia: 0.5485 in4

    Weight: 0.558 lbs/in
  • Standard barrel

    OD: 1.637"

    Moment of Inertia: 0.3516 in4

    Weight: 0.558 lbs/in

Weight

21% Lighter for the SAME stiffness
  • Structured Barrel

    OD: 1.950"

    Moment of Inertia: 0.5485 in4

    Weight: 0.558 lbs/in
  • Standard barrel

    OD: 1.830"

    Moment of Inertia: 0.5485 in4

    Weight: 0.705 lbs/in

Frequency

38% Lighter for the SAME frequency
  • Structured Barrel

    Hz: 58.4

    Moment of Inertia: 0.5485 in4

    Weight: 0.558 lbs/in
  • Standard barrel

    Hz: 58.4

    Moment of Inertia: 0.3516 in4

    Weight: 0.906 lbs/in

Barrel Life

“That makes the fifth group in a row at 500 yds sub 1/2 minute [no load development] with SDs in the single digits. After 25 rounds [.416 Barrett] (...) I can just barely, just barely feel the barrel so it is still cool. That is a big deal shooting (...) to have that consistent of temperatures.” – Paul Phillips, 3x World Champion and 2019 Ko2M Champion

“This [Structured] CheyTac after 10 rounds, the hottest we measured, was 86 degrees.” - Cal, Precision Rifle Blog

  • Structured Barrels have approximately 500% more surface area than a standard barrel and run much cooler
  • - Varies according to selected finishes
  • - Sandblast is incalculable adding billions microscopic depressions for heat dissipation and anti-reflection
  • Exhibit significantly less throat erosion, fire cracking, and gas jetting through thermodynamic control
  • Breather ports near the throat further increase barrel life through convection and force cooling
  • - Purposely configured in a spiral pattern for harmonic dampening and structural rigidity
  • - Bullets passing the muzzle generates negative pressure that pull high-velocity columns of air up the neck
  • - Cooling it from the inside
  • - Heat is not insulated; measured using SDs
  • Improve barrel life as high 50% by maintaining a Structured Barrel as you would a standard barrel
  • Optimal for PRS, LMGs, and heavy machine guns

Procurement

Step 1

Order Barrel
  • tacomHQ or other manufacturer
  • Blank Size:

    >/= .150 1-1/2"

    >/= .338 1-3/4"

    >/= .375 2"

    >/= .416 2-1/8

Step 3

We Treat Barrel
  • Finishes determine weight:

    >/= .150 ~.25 lb/in

    >/= .338 ~.30 lb/in

    >/= .375 ~.40 lb/in

    >/= .416 ~.50 lb/in
  • Turnaround 8-12 wks

Step 2

Ship Barrel
  • No chamber or muzzle work
  • Shipping:

    PO Box 268,

    Sheridan, IL 60551

    - Include Name

    - Include PO

Step 4

Build Rifle
  • Approximate finished ODs:

    >/= .150 1-1/4" to 1-3/8"

    >/= .338 1-3/8" to 1-5/8"

    >/= .375 1-3/4" to 2"

    >/= .416 2" to 2-1/8"
  • Use estimates for chassis

Step 1

Order Barrel
  • tacomHQ or other manufacturer
  • Blank Size:

    >/= .150 1-1/2"

    >/= .338 1-3/4"

    >/= .375 2"

    >/= .416 2-1/8

Step 2

Ship Barrel
  • No chamber or muzzle work
  • Shipping:

    PO Box 268,

    Sheridan, IL 60551

    - Include Name

    - Include PO

Step 3

We Treat Barrel
  • Finishes determine weight:

    >/= .150 ~.25 lb/in

    >/= .338 ~.30 lb/in

    >/= .375 ~.40 lb/in

    >/= .416 ~.50 lb/in
  • Turnaround 8-12 wks

Step 4

Build Rifle
  • Approximate finished ODs:

    >/= .150 1-1/4" to 1-3/8"

    >/= .338 1-3/8" to 1-5/8"

    >/= .375 1-3/4" to 2"

    >/= .416 2" to 2-1/8"
  • Use estimates for chassis

100% Made in the USA

100%

Made in the USA

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