 | Gunsmith - Anneal case hardened gun parts for polishing This GunTec presentation covers the process of annealing, or softening, casehardened parts so that they can be polished prior to the finishing process. Larry Potterfield, CEO and Founder of MidwayUSA, starts this process by packing each part inside a metal canister, also referred to as a crucible. The parts are covered with charcoal to prevent scaling as they cool. Once the canister is full, it is placed inside the furnace which is heated to 1500 degrees F. The parts are held at that temperature for two hours and then allowed to cool. |
 | Gunsmith - Remove old screw holes from a firearm This video hosted by the CEO and Founder of MidwayUSA, Larry Potterfield, details the process of removing old screw holes from a gun. Whether the holes were drilled to mount a scope, receiver sight, or any other accessory, they can be easily removed using simple hand tools. This process starts by removing the first couple of threads in the screw hole using a chamfer tool. Then anneal some oval head screws that match the threads of the hole and screw them into place. Using a medium weight ball pein hammer, flatten the heads so they completely fill the hole and then dress down the screw head using a fine file. Now the metal can be polished and prepared for bluing. |
 | The Parker Brothers Lifter Model Side-By-Side Shotgun This GunTec video is a look at one of the earliest shotguns produced by the Parker Brothers in Meriden Connecticut. Larry Potterfield, CEO and Founder of MidwayUSA, examines a lifter model manufactured around 1874. All the major features of this gun are examined, from the stock to the barrel materials. |
 | Miracle of Duct Tape Larry Potterfield of MidwayUSA demonstrates the many miracles of duct tape - the ultimate survival tool. From tent repair to makeshift waders, any hunter, fisherman, or outdoorsman can use duct tape. |
 | Gunsmith - Draw filing octagon gun barrel for bluing This GunTec video teaches the proper technique for draw filing an octagon barrel to prepare it for bluing. Hosted by Larry Potterfield, CEO and Founder of MidwayUSA, each step of the process, from removing dents to final polishing, is covered using a Winchester Model 1890 rifle. The process begins with the removal of dings and dents on the corners of each flat, by peening the areas with a steel punch. Once enough metal has been moved to raise the dent, a flat, smooth file is used to draw file the area. Once the draw filing is concluded, each flat is polished using consecutively finer grits of clothed backed abrasive to prepare it for bluing. |
 | Gunsmithing Side by Side Shotguns DVD Trailer New from GunTec and MidwayUSA, a DVD with more than 4 hours of gunsmithing knowledge with British trained and internationally recognized shotgun gunsmithing expert Jack Rowe and MidwayUSA's CEO and Founder Larry Potterfield. This detailed, in depth piece covers information on all aspects of working on British side by side shotguns, including tools, action work, fitting barrels, timing ejectors, adjusting triggers, making springs, disassembly, assembly, cleaning, and more. Now available at MidwayUSA.com |
 | Gunsmith - Removing dents from shotgun barrels Dents in shotgun barrels are fairly common but are easy to remove if you have the right tools. This GunTec video covers the process of raising dents in a shotgun barrel from start to finish. Larry Potterfield, CEO and Founder of MidwayUSA, guides you through the process using a Baker dent raising tool and a light hammer. The dent is primarily raised by inserting the tool into the bore and lining up the anvil under the dent. Turning the handle on the tool will raise the anvil which pushes out the dent. The final creases are removed by tapping around the dent with a light, brass hammer. If necessary, the barrel is now ready for refinishing. |
 | Gunsmith - How a bolt action functions - All 8 steps When cycling a bolt action rifle eight different things happen. In this GunTec presentation Larry Potterfield, CEO and Founder of MidwayUSA, explains all eight things that occur when the action is cycled using a Mauser 98 rifle. First, as the bolt handle is lifted the bolt handle contacts the primary extraction cam located on the top of the rear bridge. This begins the extraction process. Second, the cocking piece moves to the rear cocking the action for the next shot. Third, as the bolt is rotated, the firing pin is blocked as a safety measure. Fourth, as the bolt travels to the rear, the ejector kicks out the empty case. As the bolt is pushed forward the next cartridge is stripped from the magazine and pushed into the chamber, this is number five. Sixth, closing the bolt causes the locking lugs to seat into the lug recesses in the receiver. Seventh, as the bolt is rotated the firing pin is unblocked so the next round can be fired. Last, the cocking piece is blocked by the sear, making the gun ready to be fired with the pull of a trigger. |
 | Gunsmith - Semi-pistol grip rifle stock to full pistol grip In this GunTec video Larry Potterfield, CEO and Founder of MidwayUSA, converts a semi-pistol grip rifle stock on a Winchester model 67 to a full pistol grip style by adding a grip cap. The complete process, from fitting the grip cap to reshaping the stock, is covered in detail. This gunsmithing task provides both beginners and experienced stockmakers alike with an interesting project that can be completed using only simple hand tools. |
 | Gunsmith - Crowning the muzzle of a rifle barrel This GunTec video provides the information necessary for anyone to recrown the muzzle of their rifle using simple hand tools. Larry Potterfield, CEO and Founder of MidwayUSA, repairs and crowns the muzzle of a Winchester model 60 to demonstrate the process. Start by removing all of the damaged material from the muzzle with a smooth, chalked file. Tool marks are eliminated by polishing with varying grits of sandpaper, using the file as a backer. Once the surface is square and smooth, the crown is cut using a round headed, brass wood screw and a bit of lapping compound. Simply apply the compound to the head of the screw, chuck the screw in a hand drill, and touch the head of the screw to the muzzle while turning it at a medium speed. |
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