June 21, 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
Home308 barrel length comparison

308 barrel length comparison

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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Starline 6.5 Creedmoor SMALL RIFLE PRIMER Brass Endurance Testing- firing the same cases 12 times

Precision Rifles
August 12, 2018 0

Remington 700 with McGowen pre-fit barrel at 200 yards

Reloading
September 4, 2017 0

Customizing a Remington V3 Shotgun

Gunsmithing
November 21, 2020 0

6.5 Creedmoor loads: 6.5 mm 150 gr. Sierra MatchKing (SMK)

6.5 Creedmoor
October 14, 2017 0

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

300 BLK
August 17, 2016 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!
223 Remington/ 5.56mm NATO barrel length and velocity: 26 inches to 6 inches
Rifle bedding: How to bed a match rifle
223 Ackley Improved (223AI) loads and review: A better 223?
300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16" 300 Win Mag?
M24 Sniper Rifle Review
243 Winchester- Effect of barrel length on velocity
308 Winchester/ 7.62x51mm NATO Short barrel length and velocity- A six inch 308 bolt gun?
Budget precision rifle: Customizing the Savage Axis

The 270 in Africa

TRACT TORIC 4-20X50 UHD 30mm Rifle Scope Review

Colt M45A1 Review: USMC Pistol Review

Indoor Optical Training Aid (I.O.T.A.) Review: Dry practice with a scoped rifle


 

 

 

 

 

Building a custom Tikka T3/T3X precision rifle

September 17, 2017 0

FN SPR A3G Review

June 20, 2011 2

McMillan’s stock making and gunsmithing videos

February 12, 2015 0

How to cut and crown a rifle barrel and install a brake

April 7, 2014 0

Ruger 10/22 accuracy upgrade: Shortening factory chamber to improve accuracy

November 30, 2015 0

Winchester 70, 30-06 Retro Build

July 4, 2018 0

Customizing the 1911: detail work, golf ball reverse plug

December 16, 2017 0

Removing stuck choke tubes

March 31, 2020 0

Auto-Ordnance 1911 BKO review

February 20, 2017 0

Building a custom 7mm Rem Mag Hunting Rifle-PART 2

July 31, 2022 0

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  • 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
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