PROOF RESEARCH pre-fit steel barrels for Zermatt Arms TL3/SR3, Origin and RimX actions offer a simple way to upgrade your rifle or switch calibers. These shouldered barrels are designed for easy installation - just thread them on, torque to spec, verify headspace and you're ready to shoot.

Exhibits exceptional durability with superior erosion resistance and corrosion protection
The material exhibits exceptional pressure resistance, characterized by an optimal blend of high-tensile strength and necessary toughness to endure the extreme chamber pressures experienced during firing
1:7.5 barrel twist rate

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