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Firearms Training Blog | Expert Shooting Tips from Sgt. Graham Dunne
Latest Articles
Let’s Talk Firearms Safety
January 2026 - Author: Sgt. Graham Dunne
Background: From the Marine Corps, to police work, to private contracting, I have been involved in formal firearms training since the 1980’s. I have been a firearms instructor since 1999. I worked on a police range full-time for years, and I continue to teach firearms classes weekly, year-round. I am an adamant 2nd amendment advocate…
Colorado House Bill 24-1174: New CCW Training Requirements
December 2025 - Author: Sgt. Graham Dunne
House Bill 24-1174, passed in 2024, took effect on July 1, 2025. It changes Colorado’s concealed handgun permit (CHP) rules, especially the training required for applicants and instructors. Key changes under the new law include…
The OODA Loop: Observe, Orient, Decide, Act
November 2025 - Author: Sgt. Graham Dunne
The OODA Loop was developed by USAF Colonel John Boyd in the early 1970’s, to use your opponent’s decision-making lag time against them. A pilot in the Korean conflict, he later attended Fighter Weapons School. Boyd graduated at the top of his class, and upon graduation, was invited to stay at the FWS as an instructor. As a flight instructor, he was dubbed “40 second Boyd.” Boyd would bet students he could start in a position of disadvantage, and yet score a kill on them within 40 seconds, or he would give them $40…
Shooting Fundamentals: Follow-Through
October 2025 - Author: Sgt. Graham Dunne
The sixth shooting fundamental, often discussed last, is follow-through. Like any sport or physical task, there is a follow-through. Consider throwing a football. The arm doesn’t stop once the ball leaves your hand. Your arm continues forward, the thumb turning over, eventually moving towards the crotch. The throwing side heel flares out, often leaving the ground. This is how quarterbacks get their entire body behind a throw, rather than just their arm strength…
Shooting Fundamentals: Trigger Control
September 2025 - Author: Sgt. Graham Dunne
It is my belief that the majority of shooters improperly press the trigger, causing poor accuracy. Let’s get deep in the weeds on the four stages of a trigger press…
Shooting Fundamentals: Stance
August 2025 - Author: Sgt. Graham Dunne
It is my belief that the majority of shooters improperly press the trigger, causing poor accuracy. Let’s get deep in the weeds on the four stages of a trigger press…
Shooting Fundamentals: Breath
June 2025 - Author: Sgt. Graham Dunne
Controlling breathing is especially important during long range rifle, but even when shooting a pistol at distance. Typically, when shooters do not consider breathing, we see hits up and down the target, similar to buttons on a shirt. The shooter is firing during different stages of breath, during the rise or fall of the muzzle…
Shooting Fundamentals: Sights
May 2025 - Author: Sgt. Graham Dunne
When I entered the Marine Corps, 35 years ago, the emphasis on shooting fundamentals was high. I left the Marine Corps believing the Corps did two things very well: teaching rifle marksmanship fundamentals, and teaching leadership and followership…
Get a Grip: The Importance of Proper Grip in Firearms Handling
April 2025 - Author: Sgt. Graham Dunne
In 2020, I was being interviewed for a position as the lead firearms trainer, to train personnel contracted to protect assets for a U. S. intelligence agency, funded by Central Intelligence, you have most likely never heard of. (I had never heard of the agency before working for them, and was employed for around two weeks before I was told who we actually got our paycheck from.)
