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

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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


Case Preparation for Reloading

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

AGI Instructor Fed Zeglin knows reloading. In fact, he is the instructor in the recent AGI video course, Reloading from A to Z, and is the author of a number of articles on the subject right here on Guns and Gunsmiths.

In this video Fred goes over the basics of case preparation–essential if you are looking for consistently accurate results from your reloaded ammo. Continue reading


Ackley’s Favorite Son

by Fred Zeglin

Practical & Versatile, Factory ammo, longer brass life, and some were better than others.

270 AI vs 280 AI

Like all gunsmiths P.O. Ackley developed strong opinions about what cartridges had value during his fifty plus years building guns. Unlike most gunsmiths, Ackley based his opinions more on experimentation and empirical evidence rather than on feelings or judgments based on unverified information. Few gunsmiths have the broad experience that Ackley brought to the table, he was a barrel maker, reamer maker, cartridge designer, experimenter, tool maker, reloading expert, understood engineering principals, was knowledgeable about metallurgy, and was a gunsmith. Continue reading


Tolerance Stacking, or, Which Came First the Reamer or the Barrel?

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

My résumé has exposed me to some issues that most gunsmiths only experience from a very limited point of view. First, I rent reamers and headspace gauges to the gunsmithing fraternity. Naturally I hear everyone’s theory of what works and what matters, and I hear very clearly what clients want. Second, I am approaching thirty years in the gunsmithing business full time. Finally, I spent a little more than a year and a half as production manager for a large barrel making company. Continue reading