BCM 18" Precision Gas Gun, Out Of The Box! PART:1

Published on July 7, 2024
Duration: 25:03

This video details the process of zeroing and validating the trajectory of a BCM 18" Precision Gas Gun in 5.56 NATO. It covers using a ballistic calculator with chronograph data to achieve point of aim/point of impact at 600 yards and then systematically testing the ballistic solution at various distances up to 1000 yards. The presenter emphasizes the importance of accurate data input and environmental observation for successful long-range engagements.

Quick Summary

The BCM 18" Precision Gas Gun in 5.56 NATO features an 18-inch, 1:8 twist stainless steel barrel and a reinforced Mark 2 upper. Its trajectory is validated using a chronograph and ballistic calculator, achieving consistent hits out to 1000 yards. Potential upgrades include the trigger and stock for enhanced precision shooting.

Chapters

  1. 01:05Introduction & Sponsor
  2. 01:21Introducing the BCM 18" Marksman Rifle
  3. 02:14Zeroing and Chronograph Setup
  4. 02:36Ballistic Profile Creation
  5. 02:53Trueing at 600 Yards
  6. 03:42Optic Details: Primary Arms GLX 2.5-10x
  7. 04:37Confirming Zero
  8. 05:00Trueing Process Explained
  9. 05:15Marksman Rifle Features: Raid Rail
  10. 06:09Mark 2 Upper Receiver Features
  11. 06:29Barrel and Twist Rate
  12. 06:40Muzzle Device & Suppressor Compatibility
  13. 06:52Rail Mounting Systems: M-LOK vs. KeyMod
  14. 07:30Comparison to Mark 12 Role
  15. 09:23Trajectory Validation Plan
  16. 09:41200 Yard Validation
  17. 10:18400 Yard Validation
  18. 11:19600 Yard Validation
  19. 12:11635 Yard Validation
  20. 12:53800 Yard Validation
  21. 16:211000 Yard Validation
  22. 18:32Trigger Assessment & Potential Upgrades
  23. 19:13Stock Assessment & Potential Upgrades
  24. 19:31Initial Performance Summary
  25. 20:03Further Shooting & Wind Holds
  26. 21:32Overall Thoughts & Impressions
  27. 22:16Gun Out of the Box Performance
  28. 22:38Upcoming Training Courses
  29. 23:41Mental Health & Routine Advice

Frequently Asked Questions

What are the key features of the BCM 18" Precision Gas Gun?

The BCM 18" Precision Gas Gun features an 18-inch full stainless steel barrel with a medium contour and a 1:8 twist rate. It includes BCM's Mark 2 upper receiver for reinforcement and the new Raid Rail system, which offers enhanced cooling and mounting options.

How is the trajectory of the BCM 18" Precision Gas Gun validated?

Trajectory validation involves zeroing the rifle, using a chronograph to get muzzle velocity, inputting this data into a ballistic calculator, and then confirming the calculated holds by engaging targets at increasing distances, such as 200, 400, 600, 800, and 1000 yards.

What are the potential areas for improvement on the BCM 18" Precision Gas Gun?

The presenter identifies the mil-spec trigger as a potential area for improvement, suggesting an aftermarket upgrade for more precise or faster shooting. The stock is also mentioned as a candidate for replacement with a more preferred adjustable stock for better ergonomics.

What optic is used and recommended for the BCM 18" Precision Gas Gun?

The video uses and recommends the Primary Arms GLX 2.5-10x optic with a Griffin Mill reticle. This magnification range is considered ideal for an 18-inch barrel rifle for precision shooting applications.

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