Proof Research 308 Win Terminus Pre-Fit Steel Barrel

Proof Research 308 Win Terminus Pre-Fit Steel Barrel makes it easy to upgrade your current rifle. The steel pre-fit barrels for the Terminus Apollo, Zeus and Kratos actions come chambered and threaded for an easy install. Simply torque on, double check and ensure headspace with proper gauges and head to the range. Proof’s pre-fit Terminus barrels are a relatively easy install with no specialized gunsmithing required.

Proof Research 308 Win Terminus Steel Barrel Features

Long Lasting

Excellent erosion wear characteristics and corrosion resistance.

Extreme Pressure Resistance

An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing.

Product Registration »



Part Number Action Model Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight
130599 Apollo 26” 10 5/8-24 Competition 6lbs 4oz
130605 Zeus 26” 10 5/8-24 Competition 7lbs 5oz



More Rifle Parts

Additional information

Weight N/A
Barrel Length

26" 130599, 26" 130605


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