The Proof Research 133446 Stainless Bolt Barrel, 22 LR, 26" Threaded Competition Contour, Silver is a purpose-built rimfire barrel designed for shooters who demand consistent accuracy from their Zermatt RimX platform. This 26-inch stainless steel barrel features a competition contour for added rigidity and a 1/2x28 threaded muzzle, giving you a ready-to-install solution for precision .22 Long Rifle builds.
Optimized with a 1:16 twist rate, this barrel is well suited for precision plinking, rimfire competition, and small-game or varmint control where repeatable performance matters. The stainless construction helps maintain stability through long strings of fire, while the threaded muzzle makes it easy to add brakes or suppressors. Backed by Proof Research’s reputation for innovation and craftsmanship, it is a strong upgrade for any RimX-based rimfire rifle.
- Manufacturer: Proof Research
- Model: 133446 Stainless Bolt Barrel, 22 LR, 26" Threaded Competition Contour
- Caliber: 22 Long Rifle
- Barrel Length: 26 Inches
- Threaded Barrel: 1/2x28 Muzzle Thread
- Twist Rate: 1:16
| __Twist Rate | 1:16 |
| __Material | Stainless Steel |
| __Rifling | Other |
| __Model | 133446 Bbl Ss Bolt 22LR Di 26 Zermatt Comp 1-16 |
| __Caliber | .22 WMR |
| __Capacity | NA |
| __Optic Footprint | NA |
| __Action | NA |
| __Barrel Length | 26.00" |
