May 14, 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
HomeAR-15/M16 M4 Barrel

AR-15/M16 M4 Barrel

Carbine Basics

Accuracy testing a 16″ carbine: Daniel Defense Hammer Forged Barrel

July 21, 2015 Bill Marr 0

I’ve done a few Special Purpose Rifle (SPR) builds over the years and was always happy with the results.  After a hard weekend at the range running some difficult drills with an 18 pound 300 […]

Gunsmithing

Building (machining) an AR-15/M16 M4 barrel from a blank

May 13, 2014 Bill Marr 0

When I left the Marines in the mid-90s I got a job working the gun counter at a small sporting goods store.  We only stocked one AR-15 rifle at a time.  Back then, it would […]

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Review: Nightforce B.E.A.S.T. 5-25×56

Optics
May 8, 2017 0

1911 Gunsmithing: lower and flare ejection port

1911 gunsmithing
March 15, 2017 0

Sheared screw removal (drill and back out method)

Gunsmithing
November 17, 2018 0

Rebarreling a Winchester Model 70

Gunsmithing
February 15, 2016 0

Rifleshooter.com’s Shotgun Slug Standards

Standards
July 16, 2011 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!
Howa 1500 Review
223 Remington/ 5.56mm NATO barrel length and velocity: 26 inches to 6 inches
Review: Mossberg MVP Patrol 5.56mm NATO (223 Remington) and 7.62 NATO (308 Winchester)
Budget precision rifle: Customizing the Savage Axis
Colt M45A1 Review: USMC Pistol Review
Howa 1500 barreled action review: Howa 1500 versus Remington 700
Ruger American Rifle Predator 223 Review
M24 Sniper Rifle Review

Review: Shooting the MAGPUL Ruger 10/22 Hunter X-22 Stock

Custom Remington 870 Wingmaster Build

Konohawk stock review

6.5 Creedmoor loads: 107 SMK IMR 8208 XBR and 142 SMK Superformance


 

 

 

 

 

782 Custom Gunworks “HUNDO” Loading Block

January 26, 2025 0

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

December 7, 2015 0

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

January 4, 2018 0

16″ 6.5 Creedmoor Precision Rifle: Compact accuracy

May 9, 2016 0

300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16″ 300 Win Mag?

December 25, 2013 0

Custom 1911 Project: Part 1- getting started

August 29, 2016 0

Custom Cut Down Over and Under Shotgun

July 30, 2020 0

Removing a stuck Remington 700 barrel

February 28, 2021 0

Remington Model 4, 742, 7400 disassembly notes

December 15, 2019 0

Building a custom sawed-off shotgun

November 22, 2020 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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