June 19, 2025
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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
Homeoptimum 308 barrel length

optimum 308 barrel length

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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Cerakote Zombie Green (H168) AR-15

Rifles
November 24, 2015 0

Do rifle barrel coolers work?

Reviews
August 2, 2017 0

Ruger Precision Rifle (RPR) Review (GEN III) 6.5 Creedmoor

Precision Rifles
September 23, 2018 0

Metallic Cartridge Case Preperation Made Easy: Sinclair Power Center Review

Reloading
December 6, 2013 0

Refreshing a poorly machined Remington 700 action

Gunsmithing
July 19, 2014 0
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")
223 Ackley Improved (223AI) loads and review: A better 223?
M24 Sniper Rifle Review
308 Winchester/ 7.62x51mm NATO Short barrel length and velocity- A six inch 308 bolt gun?
Budget precision rifle: Customizing the Savage Axis
7.62x39 mm Russian: Effect of barrel length on muzzle velocity
308 Winchester Barrel Length and Velocity: Federal 168 grain Gold Medal BTHP
300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16" 300 Win Mag?

Remington 700 versus Savage 10/110: Comparative design notes

Review: Ruger’s 10/22 Optic Ready Carbine

Rogers Super-Stoc Review

Custom Left-Hand Remington 700 in 308 Winchester Precision Rifle


 

 

 

 

 

MRAD or MOA scopes? Target size matters.

May 1, 2017 0

Installing Novak’s sights on a Colt 380 Government (Mustang)

July 13, 2019 0

Bushmaster ACR Review

June 20, 2011 2

300 BLK accuracy problems? Maybe it isn’t you…

August 17, 2016 0

308 Winchester 175 Sierra MatchKing Ladder Test with Varget and IMR 4064

February 6, 2015 0

Remington Model 4, 742, 7400 disassembly notes

December 15, 2019 0

Rifle action stuck in bedding? Build a Remington 700 action puller

February 17, 2015 0

Blueprinting a Remington 700 Action

February 18, 2013 0

Removing stripped and sheared screws from a rifle

April 30, 2023 0

Countouring a Rifle Barrel Blank

January 25, 2015 0

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Recent Posts
  • 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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