April 18, 2026
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Bill Marr's journal of shooting, reloading and gunsmithing

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What's new?
  • [ January 26, 2025 ] 782 Custom Gunworks “HUNDO” Loading Block Editorial
  • [ January 26, 2025 ] How do rifle suppressors affect muzzle velocity? Precision Rifles
  • [ May 31, 2023 ] The A-Team Mini-14? Customizing a Ruger Mini-14 A-Team
  • [ April 30, 2023 ] Removing stripped and sheared screws from a rifle Gunsmithing
  • [ February 28, 2023 ] Cut and Crown a Winchester 94 30-30 Gunsmithing
Home308 barrel length velocity chart

308 barrel length velocity chart

6.5 Creedmoor

6.5 Creedmoor- Effect of Barrel Length on Velocity: Cutting up a Creedmoor!

February 22, 2016 Bill Marr 0

Since its introduction by Hornady in 2007, the 6.5 Creedmoor (sometimes shortened to Creed) has established a strong foothold in the US rifle market.  The 6.5 Creedmoor balances the excellent external ballistics of .264″ diameter bullets […]

Barrel length

308 Winchester/ 7.62x51mm NATO Short barrel length and velocity- A six inch 308 bolt gun?

February 1, 2016 Bill Marr 0

I woke up early that morning.  It was only a few days after a historic blizzard passed through my state.  Stir crazy, I couldn’t wait to get outside.  The chill from my snow covered feet […]

Barrel length

308 Winchester Barrel Length and Velocity: Winchester 147 grain FMJ

January 24, 2015 Bill Marr 0

Introduction I cut back a 28″ barrel 308 Winchester one inch at a time, to 16.5″, and recorded velocity data for four different cartridges.  The data was summarized in 308 Winchester / 7.62x51mm NATO: Barrel Length […]

Barrel length

7.62x51mm NATO (308 Win) Barrel Length and Velocity: IMI Samson 150 grain FMJ

January 24, 2015 Bill Marr 0

Introduction I cut back a 28″ barrel 308 Winchester one inch at a time, to 16.5″, and recorded velocity data for four different cartridges.  The data was summarized in 308 Winchester / 7.62x51mm NATO: Barrel Length […]

Barrel length

308 Winchester Barrel Length and Velocity: Federal 168 grain Gold Medal BTHP

January 24, 2015 Bill Marr 0

Introduction I cut back a 28″ barrel 308 Winchester one inch at a time, to 16.5″, and recorded velocity data for four different cartridges.  The data was summarized in 308 Winchester / 7.62x51mm NATO: Barrel Length […]

Barrel length

308 Winchester Barrel Length and Velocity: Winchester Super X 180 grain Power-Point

January 24, 2015 Bill Marr 0

Introduction I cut back a 28″ barrel 308 Winchester one inch at a time, to 16.5″, and recorded velocity data for four different cartridges.  The data was summarized in 308 Winchester / 7.62x51mm NATO: Barrel Length […]

Barrel length

308 Winchester / 7.62x51mm NATO: Barrel Length versus Velocity (28″ to 16.5″)

December 27, 2014 Bill Marr 0

308 Winchester / 7.62x51mm NATO: Barrel Length versus Velocity (28″ to 16.5″) Introduction Released by Winchester in 1952 (and adopted by NATO in 1954 as the 7.62x51mm NATO), the 308 Winchester has gained universal acceptance amongst […]

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M24 Accuracy with M80 Ball Ammunition?

308 Winchester
November 26, 2022 0

Blueprinting a Remington 700 Action

Gunsmithing
February 18, 2013 0

Trijicon HD Tritium Night Sight Review

Glock
June 7, 2015 0

Smith and Wesson K-Frame revolver barrel removal and installation

Gunsmithing
November 24, 2019 0

Schmidt and Bender 5-45×56 PM II High Power Review

Optics
October 22, 2017 0
308 Winchester / 7.62x51mm NATO: Barrel Length versus Velocity (28" to 16.5")
6.5 Creedmoor- Effect of Barrel Length on Velocity: Cutting up a Creedmoor!
300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16" 300 Win Mag?
223 Ackley Improved (223AI) loads and review: A better 223?
308 Winchester/ 7.62x51mm NATO Short barrel length and velocity- A six inch 308 bolt gun?
223 Remington/ 5.56mm NATO barrel length and velocity: 26 inches to 6 inches
Ruger American Rifle Predator 223 Review
Review: Mossberg MVP Patrol 5.56mm NATO (223 Remington) and 7.62 NATO (308 Winchester)
Howa 1500 barreled action review: Howa 1500 versus Remington 700
Budget precision rifle: Customizing the Savage Axis

Custom 1911 Project: Part 4- Machining a chain link front strap

Do rifle barrel coolers work?

The scout rifle: a one gun solution?

Colorado Shooting Sports AK Lightning Bolt and AK Lightning Lever Review


 

 

 

 

 

Why not 308? The battle between 6.5 Creedmoor, 6.5×47 Lapua, 260 Rem, 243 Win, 6BR, 6×47 Lapua, and 6 Creedmoor

October 17, 2016 0

CTK Precision P3 Ultimate Gun Vise Review

November 2, 2012 0

Cerakote firearms finishing: Quick trick to coat screws

November 14, 2013 0

Gunsmithing basics: Tapping a blind hole

June 24, 2018 0

Worst case scenario: pin and screw removal-EDM machining in gunsmithing

October 2, 2018 0

Building a custom Howa 1500 in 6.5 Creedmoor

November 1, 2017 0

Building a custom 260 Remington precision rifle

November 14, 2013 0

Customizing a Remington V3 Shotgun

November 21, 2020 0

Hunting Rifle Rebuild: Customizing a Remington Model Seven Hunting Rifle

October 19, 2015 0

Repairing a split shotgun stock

February 24, 2019 0

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  • 782 Custom Gunworks “HUNDO” Loading Block
  • How do rifle suppressors affect muzzle velocity?
  • The A-Team Mini-14? Customizing a Ruger Mini-14
  • Removing stripped and sheared screws from a rifle
  • Cut and Crown a Winchester 94 30-30
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