Test Course – Rifle Zero

Course Information

The Rifle Zero course is intended for every level of shooter experience. Whether you are a seasoned shooter in need of a good spotter, first-time rifle owner, or just having difficulty with a particular grain weight or caliber, our instructor will guide you through the zero so you are ready for that next course or hunt. The time allotted for this course is 1-3 hours held completely at the Tucson Rifle Club on a reserved 100 meter range.

The Three Points Range is located about 25 miles West of downtown Tucson, Arizona on U.S. Route 86 (Ajo Way). The entrance to the range is on the north side of the roadway, about 2.5 miles West of Robles Junction (Three Points) just past Mile Post 148.





Must be lawfully allowed to train with firearms. 

What this course covers

  • Body positioning for the most accurate zero
  • Basic rifle shooting skills
  • Basic bullet trajectory and bullet coefficient

Required Gear:

A privately owned firearm (no rentals for this course/more than one firearm may be brought by a shooter)
Ammunition as needed (minimum of 20 rounds per firearm)
Appropriate range attire (closed toe-shoes)
Eye and ear protection
TRC requires each firearm to have a chamber flag on the range, available for purchase either at Diamondback Shooting Sports or at TRC
Bring water, snacks as needed

Our Instructors

A US Army 82nd Airborne Reconnaissance Infantryman, and Operation Iraqi Freedom veteran (2008-2009), I also spend as much time as possible outside hunting and fishing. Having countless hours training with multiple weapon platforms from crew served weapons to pistols, and having trained military, law enforcement, and civilians. We are constantly updating our training curriculum, making Diamondback an ideal training environment for individuals from every walk of life.


-NRA Certifications: Refuse to be A Victim Instructor, Range Safety Officer, Pistol Instructor, Rifle Instructor, Shotgun Instructor, Inside and Outside the Home Personal Protection Instructor
-Arizona Department of Public Safety, Unarmed and Armed Security Guard Instructor
-Arizona Game and Fish Hunter Education Volunteer Instructor
-Sabre Red OC Spray Instructor
-ASP Baton, Handcuffing, and Flashlight Tactics Instructor
-CPR Certified

A Former US Marine, Roan Grimm has dedicated his life to the study of the grim realities of violent close combat.  With 35+ years of martial arts, the past 27 of which have been focused on the weapon intensive Filipino martial arts (arnis/eskrima/kali) and WWII era American combatives (scientific dirty fighting). With over 125 real contact stick fights with the world renown Dog Brothers, Grimm has tested the theories of actual fighting with impact weapons at a level few can approach.


Email: Training@dbackshootingsports.com


-NRA certified RSO, Pistol, Rifle, and Shotgun Instructor
-Guro (black belt equivalent) in Nitullama silat as well as Dog Brothers Martial Arts
-Ma’a Guro in Sub3 American Kali, and Full Dog Brother – “Poi Dog”
-AZ DPS certified Unarmed Guard Instructor
-Creator of ADEPT personal security program

Upcoming Scheduled Courses

* To register click on one of the courses below

7 Oct

To register for this course click the above link

Saturday @ 11:00 am Location provided via email
Tucson, AZ United States
4 Nov

To register for this course click the above link

Saturday @ 11:00 am Location provided via email
Tucson, AZ United States
2 Dec

To register for this course click the above link

Saturday @ 11:00 am 7030 E. Broadway
Tucson, AZ 85710 United States