Ask any serious shooter what separates a reliable workhorse from a precision instrument, and the answer almost always comes back to the barrel. Chambering, twist rate, and profile all matter — but the internal and external treatment of the steel itself is where longevity, accuracy, and value are actually decided. Two treatments dominate the modern rifle market: cold-hammer-forged (CHF) chrome-lined barrels and QPQ (Quench-Polish-Quench) nitride-treated barrels. Both have passionate advocat …