The last test-fire session for 2022 at Serbu Firearms, Inc.!

This video showcases the Serbu RN-50 rifle chambered in .50 BMG engaging a steel target. It highlights the unique screw-on breech loading process and the significant recoil and muzzle blast associated with this large caliber firearm. The demonstration includes loading, firing, and extracting the spent casing, emphasizing safe handling and range protocols.

This video showcases the destructive power of a .50 BMG round fired from a Raptor-50 rifle at a Halloween-themed target. The demonstration highlights the rifle's single-shot capacity and the dramatic impact on a pumpkin, emphasizing the raw force of this large caliber round. It's a clear display of high-power rifle capabilities in a fun, albeit destructive, context.

This YouTube video showcases a collection of "crazy and interesting" firearms brought by Print Shoot Repeat (PSR) to the Moons Out night vision match in Virginia. The description highlights a "wild mix" of unusual, cool, and custom-built guns, including "plastic-squirted favorites." The video features testing and shooting of these firearms at an Airbnb with a private shooting range, offering viewers a look at unique firearm creations and a day of fun. The content is presented by Polenar Tactical and supported by their sponsors and community.

This demonstration showcases the .50 BMG round's power by firing a Serbu RN-50 at a 15-inch thick paper target. The projectile penetrated approximately 9 inches, demonstrating significant terminal ballistics. The video highlights the rifle's single-shot, bolt-action design and the impressive muzzle blast.

This video conducts a ballistic experiment, testing how many jars of peanut butter different calibers can penetrate. It starts with smaller calibers like .22 LR and 9mm, which stop in the second jar, and progresses to a 10mm that penetrates five jars. The .223 Remington from an AR-15 penetrates two jars, while a 12 gauge slug stops in the fourth jar. The host demonstrates safe firearm handling throughout the casual, experimental range day.

The video is titled '3V Mustang Launch.' Based solely on the title, it is highly likely this video depicts the initial firing or testing of a firearm, possibly a custom build or a new product introduction. The mention of 'launch' suggests an event where a firearm is being used, potentially for the first time or in a significant demonstration. Without further description, the specific firearm, caliber, or manufacturer cannot be determined, but the context points towards a firearm-related activity.

Mark Serbu details the complex process of converting a CNC lathe into a 12-barrel blank-firing machine gun. The project highlights the critical role of a lathe's C Axis for precise rotational control and the application of PID control theory to overcome initial firing failures. Modifications were made to ensure the device fires blanks only, avoiding legal issues.

This video demonstrates how to rifle a barrel in a home shop using basic tools, bypassing expensive CNC equipment. It covers material preparation, precise drilling and reaming, and the critical process of pushing a rifling button. While a DIY approach is shown to be possible, the video highlights the significant difference in quality and precision achievable with professional CNC machining.

This video provides an in-depth analysis of the Serbu RN-50 rifle that experienced a catastrophic failure during a Kentucky Ballistics test. Mark Serbu, the designer, meticulously examines the damage, noting severely bent steel side plates, sheared-off breech cap ears, and a sheared pivot pin. The inspection also covers the breech cap's condition, barrel threads, and the stuck casing, revealing a case head separation.

Mark Serbu, designer of the RN-50, addresses a catastrophic failure experienced by Kentucky Ballistics. He reassures customers about the RN-50's safety, attributing the incident to counterfeit or over-pressured ammunition. Serbu highlights the rarity of such events and emphasizes industry transparency, noting that his company has produced approximately 1,400 RN-50s since 2016 with hundreds of thousands of rounds fired without issue.