April 24, 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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Reloading 6.5 Creedmoor with Reloder 16 (RL16) and the 142 and 150 Sierra MatchKing (SMK)

6.5 Creedmoor
November 19, 2017 0

Accuracy International AICS-AX 2.0 Chassis System Review: Initial Thoughts

Accessories
December 20, 2013 0

Review: Citadel RS-S1 Shotgun

Reviews
October 14, 2018 0

Truing The Bolt On A Remington 700

Gunsmithing
November 3, 2013 0

McMillan launches new line of less expensive stocks: Grayboe

Accessories
June 22, 2016 0
223 Remington/ 5.56mm NATO barrel length and velocity: 26 inches to 6 inches
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?
Review: Mossberg MVP Patrol 5.56mm NATO (223 Remington) and 7.62 NATO (308 Winchester)
Building a Custom Ruger American Rifle
Ruger American Rifle Predator 223 Review
Budget precision rifle: Customizing the Savage Axis
Review: Howa MINIACTION 7.62x39
M24 Sniper Rifle Review

Windham Weaponry Carbine Review – The Inspiring New “Old” AR

Modular Driven Technologies (MDT) LSS Chassis Review

Remington Model 700 MAGPUL review

6.5 Creedmoor 136 grain Scenar-L OTM Load Development, H4350


 

 

 

 

 

308 Winchester Load Development: 175-grain Sierra Matchking and Varget

December 13, 2014 0

Lapping an AR15 Upper Receiver

November 23, 2012 0

35 Whelen: That Whelen Fellin’ Again

June 23, 2011 2

Remington 870 extractor identification: MIM v. bar stock

April 29, 2018 0

223 Remington/ 5.56mm NATO barrel length and velocity: 26 inches to 6 inches

December 7, 2015 0

Installing a Mini Red Dot Mounting Plate on a Smith and Wesson Revolver (586/686)

December 15, 2021 0

Custom 1911 Project: Part 1- getting started

August 29, 2016 0

Re-chambering a barrel: 243 Winchester to 6×47 Lapua

September 14, 2014 0

Rebarreling a Winchester Model 70

February 15, 2016 0

Armalite AR-30 muzzle brake installation

June 9, 2019 0

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  • How do rifle suppressors affect muzzle velocity?
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  • Removing stripped and sheared screws from a rifle
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