Videos tagged with Keyholing

This video demonstrates the dangerous consequences of firing incorrect ammunition in a .308 Winchester rifle. The host, exhibiting high-level expertise, tests .243 Winchester, .260 Remington, and 7mm-08 Remington rounds, highlighting issues like fire-forming brass, extreme inaccuracy, tumbling projectiles, and significantly reduced velocity due to gas blow-by. While technically possible in a dire emergency, the experiment concludes that using the wrong caliber is ineffective and hazardous.

This review examines a Glock 26 barrel with an astonishing 121,600 rounds fired through it, purchased for $20 on eBay due to its 'keyholing' issue. Visual inspection confirms the complete absence of rifling, explaining the malfunction. The seller's detailed logs and use of this barrel as a primary test firearm for durability highlight its extreme wear.

The Daniel Defense H9 is identified as the most disappointing firearm release of 2024 due to significant reliability issues, including malfunctions and 'keyholing'. Despite Daniel Defense's attempts to rectify the problems with new barrels and repairs, the initial negative reception has severely impacted the H9's market perception and consumer interest. The speaker suggests the hype has vanished, leaving the manufacturer with a challenge to rebuild trust.

This video showcases a vintage Charter Arms stainless steel Pathfinder revolver with a 3-inch barrel at the range. The presenter notes good initial accuracy but observes potential keyholing after approximately 120 rounds, suggesting a need for deep cleaning. The description also touches on common .22 LR barrel cleaning practices, with the presenter expressing skepticism about frequent bore snake use for target pistols.

This short demonstrates a 'keyholing' issue where bullets impact a target sideways, indicating tumbling. The speaker uses an Aero Precision 10.5-inch AR-15 with AAC 5.56 NATO 55 Grain FMJ ammunition and seeks audience advice to resolve the problem, as the rifle cycles normally.

This video features a vintage 1960 "Letter Series" SKS rifle being fired using vintage 1991 Norinco ChinaSports 7.62x39mm ammunition. The shooter describes the ammunition as soft-shooting, with all rounds firing, though one failed to fully eject. Despite some keyholing at 10 yards, the shooter expresses no regret in expending the ammunition, deeming it "garbage" and keeping the boxes for nostalgia.

This video from The VSO Gun Channel, featuring Brandon Herrera, investigates the accuracy and reliability of firing 5.56x45mm NATO ammunition from a 7.62x39mm AK-47. The experiment reveals significant issues, including poor accuracy characterized by keyholing, severe extraction problems, and low projectile velocity, rendering the practice impractical and potentially damaging to the firearm.

The S333 Thunderstruck revolver exhibits severe bullet instability, causing keyholing even at close range, regardless of ammunition quality. Testing revealed the issue is isolated to the left barrel, indicating a manufacturing defect rather than a design flaw. The review concludes the S333 is unreliable for self-defense due to its inaccuracy.

This guide details the process of reloading .300 Blackout subsonic ammunition using 220gr Nosler Ballistic Tip bullets. It covers brass preparation, OAL determination, powder selection (CFE BLK, W296), bullet seating challenges, and crucial range testing for stability. The expert-level instruction highlights potential issues like keyholing and poor bullet expansion, emphasizing a methodical approach to ammunition development.

The Franklin Armory Reformation is a legally classified 'firearm' designed to circumvent NFA regulations for SBRs, utilizing straight-cut rifling that intentionally causes keyholing. While its binary trigger offers rapid fire, accuracy testing shows significant keyholing and a 3.25-inch group at 50 yards. Ballistics gel tests reveal impressive temporary cavity effects, but terminal performance degrades significantly at 100 yards, limiting its practical use to close-range self-defense or novelty.

This review of the Arsenal SLR-104UR SBR in 5.45x39mm, often called the 'Krinkov', focuses on its performance with a 1:8 twist rate barrel. Despite concerns about stabilization with shorter barrels, extensive testing with various commercial loads revealed no significant keyholing issues. The review highlights the importance of proper barrel crowning for custom builds.