Another Gunsmithing Student Handbook by Fred Zeglin

Not long ago I reviewed the first two of a series of Gunsmithing Student Handbooks by G&G Contributor Fred Zeglin. These handbooks are full of the most essential information on the subject, that any gunsmith can benefit from.

Now Fred has added a third book to the series “Chambering Rifles for Accuracy”. Here is his Press Release with more information. Continue reading


To Gauge or Not to Gauge?

By Fred Zeglin
AGI Instructor, Author,
Lassen College Gunsmithing Graduate and Cartridge Designer.

Liability is the question

I talk to hundreds of gunsmiths each month. It surprises me how often these “professionals” decide not to use a headspace gauge when they are available to them. They say, “No, that’s OK, I’ll just use the brass.” Continue reading


Make It Shoot!

ZeglinBy Fred Zeglin,
4D Reamer Rentals

A while back a gentleman brought me a factory gun that was shooting poorly; groups were averaging 2.5″ for five shots.  It made no difference what ammo was used.  The  client had tried factory ammo and reloads in different bullet weights.  He tried changing loads and seating depth, even neck sizing was attempted just to see if cases fire-formed to the chamber were more accurate.  Continue reading


Book Review: P.O. Ackley—America’s Gunsmith

by Gary Howes
Guns and Gunsmiths Editor

Recently I receive a copy of a new book written by our own G&G contributor and AGI Instructor, Fred Zeglin. Until then, I had some  knowledge of P.O and knew that he was a cartridge designer best known for his “Improved” ammo designs, but not much more than that. I was soon impressed with how much more this great American gunsmith achieved during his life, and Fred has given us a great history lesson as well as a valuable technical manual for anyone interested in gunsmithing, wildcat cartridge design, and reloading. Continue reading


Tip From the Workbench–Barrel Taps and Dies

ZeglinThumbnailwith Fred Zeglin
AGI Instructor and Owner of 4D Reamer Rentals

In this video lesson, Fred Zeglin discusses the use and types of taps and dies used when working on barrels. This is an operation that must be done correctly–threads that are damaged of not straight relative to the axis of the barrel can result in accuracy issues as well as compromise the strength of the screwed joint. Continue reading


Custom Sights–Part 2 of 2

ZeglinThumbnailwith Fred Zeglin
AGI Instructor and Owner of 4D Reamer Rentals

Part 2 of Fred’s great educational article on installing custom sights. This time Fred gives us the math to determine the cuts needed to install express sights correctly as well as installing custom quarter ribs. If you missed Part 1, CLICK HERE.

'95 Winchester with custom quarter rib and express sights

’95 Winchester with custom quarter rib and express sights

Continue reading


Tip From The Workbench–Headspace Gauges

ZeglinThumbnailwith Fred Zeglin
AGI Instructor and Owner of 4D Reamer Rentals

In this video, Fred explains why headspace gauges are made to the sizes and specifications they are, and what that means to a gunsmith that machines or reams chambers for customers. Understanding how to use your tools can make all the difference in your firearms business and the quality of your builds. Continue reading


Custom Sights — Part 1 of 2

ZeglinThumbnailwith Fred Zeglin
AGI Instructor and Owner of 4D Reamer Rentals

When I graduated from gunsmithing school, I went to work in a shop that exposed me to many custom features and services that could be offered to our clients.  High on that list were custom scope mounts and sights.  Such work is really not difficult and because many shops neglect to offer such work, it’s profitable and attracts new clients once the word gets out that you offer the services. Continue reading