The Proof Research 100646 6.5 Creedmoor 22" Stainless Barrel brings precision-focused performance to AR-10 and AR-308 builds. This traditional steel barrel uses a heavy contour and 5/8x24 threaded muzzle, giving shooters a stable platform for brakes or suppressor-ready devices while maintaining a clean stainless appearance.
Optimized around Proof Research’s Caliber Matched Gas System, the rifle +2 CamGas layout and 1:8 twist rate are tuned for modern 6.5 Creedmoor loads, supporting smooth cycling, softer recoil impulse, and reliable extraction over long strings of fire. Ideal for extended range sessions, practical precision matches, and hunting where predictable accuracy matters, this barrel reflects Proof Research’s reputation for meticulous machining and thoughtful engineering.
- Manufacturer: Proof Research
- Model: 100646 6.5 Creedmoor 22" Stainless Barrel
- Caliber: 6.5 Creedmoor
- Barrel Length: 22"
- Gas System Length: Rifle +2 CamGas
- Contour/Journal: Heavy / 0.875"
- Twist Rate: 1:8
| __Material | Stainless Steel |
| __Twist Rate | 1:8 |
| __Rifling | Other |
| __Model | 100646 |
| __Capacity | NA |
| __Optic Footprint | NA |
| __Action | NA |
| __Caliber | 6.5 Creedmoor |
| __Barrel Length | 22.00" |
