Mammoth Sniper Challenge

G3 Dynamics, owned and operated by Grunt Style LLC, organizes the Mammoth Sniper Challenge, an endurance-based precision rifle competition designed to test marksmanship, teamwork, and stamina. The multi-day event features two-person teams navigating more than 35 miles and completing 14 stages over 72 hours, while carrying their own ammunition, food, and shelter. With no resupply, competitors face demanding conditions and a reported finish rate of 62 percent.

The brand runs events at venues including Fort Pickett, Virginia, and Fort Chaffee, Arkansas, and publishes competition rules, gear lists, standings, results, and alumni information. Its website also offers training resources, event highlights, live and recap videos, and a briefing with key dates and preparation checklists for people interested in future registration. Both 2026 events sold out, and registration for the listed 2027 events is also closed. G3 Dynamics works with a network of sponsors and equipment partners, including Vortex Optics, Magpul, and TacticalGear.com, to support its competitions and related content.