Marlin 60 stainless steel redemption! Runs like a sewing machine now!

This expert guide from the School of the American Rifle details how to identify and address rough carrier key bores in AR-15 bolt carrier groups. The instructor, demonstrating expert knowledge, explains how these manufacturing defects, particularly on Colt components, can lead to premature wear on the gas tube and reduced reliability. Solutions involve replacing the defective carrier key to ensure smooth operation and longevity of the firearm.

This expert-level guide provides a detailed, step-by-step walkthrough for reassembling the Ruger 10/22 Rifle, presented by an instructor from Ruger Firearms. It covers safety precautions, component reinstallation, and crucial function checks, emphasizing the use of specific tools like a 5/32" Allen key and a small punch. The instruction is clear and authoritative, suitable for intermediate skill levels.

This guide addresses common feeding and hammer drop issues encountered with a Beretta 92 .22LR conversion kit. It outlines steps for inspection, potential break-in periods, ammunition testing, and checking critical internal components. The speaker, a hobbyist, suggests these troubleshooting steps are necessary when the kit experiences malfunctions.

This guide details the disassembly process for the gas trap variant of the M1 Garand, highlighting its differences from the later, more common models. It involves removing the bolt and operating rod first, then a specific screw to release the gas trap, followed by the sight block, before the gas trap assembly can be rotated off. This early design proved less reliable than the later gas piston system.

This guide details the process of lapping an AR-15 receiver to ensure proper barrel alignment for improved long-range accuracy. Instructor Stephen Caleb from Brownells explains that receiver faces can be slightly out of alignment, leading to barrel runout. The process involves using a specialized lapping fixture and aluminum oxide lapping compound with a drill to create a perfectly flat receiver face. This ensures the barrel seats flush and square, critical for precision shooting beyond 500 yards.

This guide details the installation of the CZ Flyweight trigger mechanism and the replacement of the firing pin on a CZ 457 action. The process involves removing the original trigger and firing pin using specific tools like Allen keys and Torx drivers, then installing the new components. The flyweight firing pin is identifiable by a distinct slot on its front.

This review focuses on a vintage 1980s Smith & Wesson Model 60 'no dash' revolver, identified as a new favorite by the reviewer. The expert firearm collector highlights key vintage features such as the pinned barrel, hammer-mounted firing pin, and original wooden grips. The revolver's history of ownership in Concord, Massachusetts, adds to its provenance.

This review by Cranky Gun Reviews provides a detailed, analytical comparison of three minimalistic .22LR survival rifles: the Chiappa Little Badger, Ruger 10/22 Takedown, and Henry US Survival. The expert reviewer assesses each rifle based on critical survival criteria including deployment speed, portability, weight, capacity, ergonomics, sights, floating ability, and price, offering practical insights for choosing the best option for specific needs.

This review of the Savage Model 301 break-action shotgun highlights its budget-friendly nature, ideal for survival scenarios. The expert demonstrates its simple operation, safety features like the hammer block transfer bar, and easy two-piece takedown for portability. Performance with various .410 bore ammunition types is discussed, along with its value proposition under $200.

This guide details a DIY approach to handloading 410 shotshells, focusing on cost savings and utilizing repurposed tools alongside specific MEC press components. The process involves trimming 3-inch shells to 2.5 inches, depriming, resizing with a dedicated die, and priming. It then covers measuring powder (14 grains of Winchester 296), seating wads, adding shot (half an ounce of #6), and performing both pre-crimping and final crimping using MEC accessories. The presenter emphasizes the challenges of achieving perfect crimps without a full MEC press setup.