Gamo Swarm Magnum Pro Gen 3i in .22 Caliber, by Thomas Christianson

The Gamo Swarm Magnum Pro is a break-barrel air rifle that loads from a 10-shot magazine whenever it is cocked. This significantly speeds the pellet loading process. The Swarm has a two-stage adjustable trigger, comes with a surprisingly good 3-9x40mm scope, features a suppressor integrated into the barrel, and includes a well-designed glass-filled-nylon (GFN) stock. Designed for small-game hunting, pest control, and target shooting, the rifle is reasonably accurate, reliable, easy to use and economical to operate.




Uncharted Supply Company Seventy2 Pro Survival System, by Thomas Christianson

Given enough time, most of us would like to stock our own survival-kit/bug-out-bag with our favorite, hand-picked equipment. But sometimes there is not enough time or enough hand-picked equipment to go around. We want to add a bag to an additional vehicle. We are just getting started and don’t yet know what equipment to pick. Or we want to help a family member on short notice. The Uncharted Supply Company Seventy2 Pro Survival System is designed to provide two people with the basic equipment and supplies to survive the first 72 hours after an accident, disaster, or disruption. I am …




The Elenco AM/FM-108CK Radio Kit – Part 2, by Mike in Alaska

(Continued from Part 1. This concludes the article.) C45 INSTALLED UNDER PCB (LEFT) IC1 SOCKET PINS IDENTIFIED (RIGHT) There will be many other such steps in this process, so I’m now going to fast forward to pages 9 through 14 after completing all the installation of parts in those pages and report on the tests that are part of the process up to that point. (NOTE: the top of page 12 indicates that if you don’t have the audio generator and the oscilloscope to skip to part 1B) I chose to do the tests and report my findings for the …




EZARC ARC-Edge Reciprocating Pruning Blade, by Thomas Christianson

The EZARC ARC-Edge Reciprocating Pruning Blade is designed to make a Sawzall or similar reciprocating-blade-saw into a pruning tool. The 15-inch, chrome-vanadium-steel blade has an aggressive tooth design optimized for pruning with five teeth per inch. A shorter 12-inch version is also available. I tested the 15-inch version. Based on my testing, I would suspect that the shorter 12-inch version would work better than the 15-inch version. The extra length of blade that extends beyond the object being cut tends to whip violently to the left and right as the blade moves backward and forward. This creates extra friction, vibration, …




Tyrant Design TDC 002 Folding Knife, by Thomas Christianson

The Tyrant Design T.D.C. 002 Folding Knife has a 2.75-inch Tanto blade that is 0.13 inches thick at the broadest part of the spine. It has a black nitride finish and is made of D2 steel. The blade opens smoothly around a ball bearing pivot point using nicely textured thumb studs. It is secured in the open position by a liner lock. Jimping on the spine of the blade gives better control during delicate cuts. The grip of the handles is enhanced by textured EPDM rubber panels with a decorative chevron pattern. Chevrons on the accent spacer on the back …




TriStar KR22, by Thomas Christianson

The TriStar KR22 rifle has many excellent features. It is well-balanced and feeds smoothly. The synthetic stock is nicely weather resistant. It comes with two magazines. The comb can be adjusted for height, making it easy to get a good cheek weld while using optics. The receiver includes an integrated Picatinny rail. The stock comes with sling studs installed. The barrel is threaded to accept muzzle devices. The magazine-well accepts Ruger BX-series magazines. For me, the KR22 functioned most effectively with a red dot sight. To be useful for pest control, a rifle should be capable of consistently shooting two-inch …




FrogLube Gun Care Products, by Thomas Christianson

I recently tested a number of FrogLube products for effectiveness for firearms cleaning, lubrication, and corrosion resistance. I tested FrogLube Lubricant-Protectant and FrogLube Extreme Lubricant and Preservative for corrosion resistance. I tested FrogLube Super Degreaser and FrogLube Solvent for cleaning. I tested FrogLube Extreme Lubricant and Preservative for its effectiveness as a lubricant. My standard gun care products are kerosene for cleaning and Breakfree CLP for lubrication and corrosion resistance. I found the performance of FrogLube products to be roughly comparable to my standards under temperate conditions. In my limited testing, I felt that FrogLube Extreme Lubricant and Preservative was …




The Go-Kot, by Thomas Cristianson

Handmade in the USA, the Go-Kot was designed by scoutmasters in 1978 in order to provide better cots for their scouts. The Go-Kot is compact. When packed in its 28 x 8 x 3 inch carrying bag, the Go-Kot takes up less room in a trunk or cargo compartment than the typical camping cot. The Go-Kot is rugged. It is constructed of heavy-duty nylon fabric, an aircraft-grade aluminum frame, and spring-steel legs. The Go-Kot is easy to assemble and disassemble. It takes about a minute to take it out of the carrying bag and set up. It takes about another …




Benelli M4 Tactical Shotgun, by Thomas Christianson

The Benelli M4 is the civilian version of the M1014 semi-automatic combat shotgun that was developed for the United States military in 1998 and taken into service in 1999. The M4 or the M1014 is now used by military or law enforcement agencies in Austria, Belarus, Belgium, Georgia, Ireland, Libya, Malaysia, Portugal, Serbia, Slovakia, Slovenia, Spain, Ukraine, the United Kingdom, and the United States, among others. Its unique “auto-regulating gas operated” (ARGO) system uses an elegantly simple arrangement of two pistons that push directly against the bolt. The system allows the shotgun to be used with intermixed rounds of different …




Minuteman Titan Rocket Stove, by Thomas Christianson

The Minuteman Titan Rocket Stove has a shell around the body of the stove that is filled with ceramic fiber insulation. This ensures that a large portion of the heat produced by the stove goes up the chimney to cook whatever is on the grate instead of being randomly dissipated in all directions. Once the stove is hot, this feature greatly accelerates its cooking speed in comparison with a similar uninsulated stove. With a weight of 35 pounds, the Titan is best suited for use at a fixed location or in conjunction with wheeled transport. The Titan is fairly expensive. …




Diamond “Strike-A-Fire” Fire Starters, by Thomas Christianson

Each Diamond “Strike-A-Fire” Fire Starter (SAF stick) is kind of like a giant match which is 5.75 inches long, 1.13 inches wide, and 0.25 inches thick. The shaft of a SAF stick seems to be made out of some sort of pressed wood that is impregnated with a waxy substance. When the match-like head of a SAF stick is struck on the striking strip on the box, it ignites the SAF stick which then burns for approximately 12 minutes. In the process, the SAF stick creates enough heat to effectively ignite most types of kindling. [JWR Adds: The SAF sticks …




Silky KatanaBoy Professional 700, by Thomas Christianson

Chainsaws are wonderful tools for wood cutting. But chainsaws are not perfect. Chainsaws are heavy. Chainsaws are noisy. Chainsaws require supplies of fuel and bar oil. These limitations can be problematic during field use. The Silky KatanaBoy Professional 700 presents an outstanding manual alternative to chainsaws for cutting trees and branches up to 14 inches in diameter. The saw is light and compact, weighing just four pounds and folding to a length of 33 inches. It creates so little noise that hearing protection is not required. It requires no supplies except the muscles of its user. And it uses those …




A Counterfeit “Benchmade Barrage”, by Thomas Christianson

A Cautionary Tale “If something seems too good to be true, then it probably is.” (Modern Proverbial Warning, circa late 20th century). “For fools rush in where angels fear to tread.” (Alexander Pope, circa 1711). One day, when the battery was running low in my scam detector and my gullibility meter was running high, I ordered a new “Benchmade Knives Barrage 583SBK limited edition white” on eBay. The knife eventually proved itself to be a counterfeit. In fact, after examining the postings for other “Benchmade” knives offered for sale on eBay, I have come to the conclusion that most of …




Mantis TitanX 702, by Thomas Christianson

The new Mantis TitanX provides a training pistol that is compatible with both motion-based and laser-based training systems. The MantisX motion-based training system is freely available for iPhone, Android and Kindle devices. It is a sophisticated app that provides an extensive collection of drills and courses. The TitanX pistol is also compatible with the Mantis Laser Academy Kit, which cost $159 at mantisx.com at the time of this writing. As a dry-fire training aid, the TitanX does not expend ammo, can be safely used at home, and provides immediate feedback. In this way, it improves marksmanship while saving both money …




Demko Shark-Cub Knife, by Thomas Christianson

The Demko Shark-Cub AUS10A Slicer Shark is a great knife for everyday carry (EDC). Its 2.5 inch drop-point, saber-ground blade is 0.13 inches thick at the spine and has a stonewashed finish. Deep jimping along a longer-than-average segment near the base of the spine of the blade provides extra control during delicate cuts. A thumb notch makes ambidextrous one-handed deployment simple, while presenting a thinner profile than thumb studs. The glass reinforced nylon (GRN) handle has a canvas-micarta-like finish with contours that fit the index and middle fingers. The scales are reinforced by a steel liner that extends half of …