GPS Defense is partnering with Surgeon Firearms for a Big Bore training course which is designed to show students that the boundaries they once thought impossible can easily be broken.

This course is designed to teach the fundamentals of long range marksmanship with magnum caliber rifles.

The course covers rifle/scope setup and variations, differences in reticles first focal, second focal planes, and implementing MOA, Mil, and other style reticles. The course includes basic ballistics and what affects bullet flight, including how to compensate for wind. In this advanced shooting course, students will push their capabilities far beyond what they thought possible engaging targets out to 2,000 yards with .338 – .50 caliber rifles and everything in between.

This course is for rifles chambered .338 up to .50BMG.


  • Safety
  • MOA/Mil Relation/Ranging
  • Marksmanship Fundamentals
  • Caliber SelectionProper Rifle Setup
  • Scope Selection
  • Data Collection out to 2000 yardsCaliber Selection
  • Ballistics
  • Affects of Wind

Date: March 4th - 5th, 2017
Prerequisites: None
Duration: 2 days
Cost: $500
Promotion: Previous GPS Student $450 (10% Saving)
For current Military, Law Enforcement, or DoD w/ valid ID: $425 (15% Saving).


On-site lodging & food is available for $110/day. This facility is at the range where we conduct the training courses. This housing is “bunk house style” and will be shared rooms. Provisions should be brought to the facility if using this option. Rides to the range can be provided if scheduled prior, it is not recommended to drive a car to the facility. Truck or SUV type vehicle with high ground clearance is recommended.