Gunsmithing Diploma
Module 4 - Rechambering, Rebarreling, & Trigger Work
Rebarreling and Headspacing
You see how to use a lathe for rebarreling, how to cut different types of barrel threads (Acme, square, Whitworth, and metric), how to do bushing and barrel preparation, and how to check for and resolve a variety of headspace problems.
Triggers, Chambering, and Freeboring
Shows you how to do custom modifications on firearms by re-chambering and freeboring barrels and replacing, installing, and adjusting several types of triggers.
Shotgun Chokes, Chambers, and Ribs
Special information on custom shotgun alterations. Covers adjusting, reaming, tightening, sleeving, and boring chokes; lengthening and converting shotgun chambers plus resoldering shotgun ribs.
Custom Fitting the Shotgun
You learn the importance of proper stock pull for shooting proficiency and how to measure the pull and drop of the shooter's forearm and trigger finger to ensure the right fit, even with specialty stocks.
Restoring Rifle and Shotgun Barrels
Practical applications of and compounds you need for lapping (the grinding/polishing process used to restore rifle barrels). Also covers the care and use of reamers for shotgun barrel alterations as well as different methods of soldering, brazing, and welding metal.
Making and Replacing Obsolete Gun Parts
Starts off with a study of different heat treatments and hardening techniques for steel, including tempering, annealing, forging, normalizing, and carburizing. Discusses special supply sources for gun parts, milling and grinding, and making springs.
Stock Fitting and Metal Work Lab Kit
Just as the length of a club affects a golfer’s game and a skier’s run is influenced by the size of his skis and boots, so is the shooter's skill related to the “fit” of his gun. As a gunsmith, there are many things you can do to create and adjust proper fit for your customers. As you get an actual hands-on feel for using these tools, you build the stock and trigger work skills you need to make money by making any customer’s guns fit properly.
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