April 30, 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 accuracy

308 barrel length accuracy

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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Rifleshooter.com’s 50-25-7 Practical Carbine Standard

Standards
July 16, 2011 1

Installing a bead on a shotgun barrel

Gunsmithing
February 7, 2019 0

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Uncategorized
July 23, 2016 0

Review: Ruger Wrangler Single-Action Revolver, Initial Impressions

Handguns
November 23, 2019 0

Remington R15 30AR Review (Model 60100)

Cartridge Selection
July 22, 2011 3
223 Remington/ 5.56mm NATO barrel length and velocity: 26 inches to 6 inches
6.5 Creedmoor- Effect of Barrel Length on Velocity: Cutting up a Creedmoor!
308 Winchester / 7.62x51mm NATO: Barrel Length versus Velocity (28" to 16.5")
Review: Remington 700 SPS Varmint
Review: Shooting the MAGPUL Ruger 10/22 Hunter X-22 Stock
Budget precision rifle: Customizing the Savage Axis
Sig Sauer MPX Review
300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16" 300 Win Mag?
223 Ackley Improved (223AI) loads and review: A better 223?
Howa 1500 Review

Review: Paul Howe Advanced Tac Pistol/Rifle Operator DVD

NRL22- Precision Rimfire Competitions

USMC M40A5 Build- Part 3: Receiver Truing

Forster CO-AX reloading press: REVIEW- Is it the best press for precision rifle?


 

 

 

 

 

IDF Modernized M24 SWS Review

January 8, 2023 0

Vang Comp Systems Ghost Ring Sight Installation

August 7, 2012 0

Modular Driven Technologies (MDT) Elite Sniper System (ESS) chassis initial impressions

January 10, 2017 0

Removing a stuck pull-through cleaning kit

February 28, 2021 0

Installing Venom’s Antidote muzzle brake & tactical gas block on an AK (Kalashnikov) barrel- cut, crown and thread an AK barrel

May 27, 2013 0

Building a custom 308 Winchester precision rifle: Howa 1500 action & MDT ESS chassis

January 4, 2018 0

Bedding an HS Precision Stock

January 2, 2017 0

Mossberg 500: Cut, Crown and Choke Tube Installation

November 2, 2014 0

Easy cosmoline removal

February 4, 2018 0

“Blueprinting” (Truing) a Remington 700 Action

December 23, 2014 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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