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Pete Rickard
The PROOF BBL SS Bolt .264 28" Competition Barrel in 1:8 Twist is a stainless steel precision barrel built for shooters who demand match-grade accuracy. Built by PROOF Research—a manufacturer that acquired 15 years of barrel-making experience when it partnered with Lawrence Barrels in 2012—this barrel arrives from the factory ready for your gunsmith to thread and chamber. It's engineered for competition shooting and long-range precision work where bore consistency and rifling uniformity directly impact your groups downrange.
PROOF manufactures this barrel in-house using double stress-relieved 416R stainless steel, a chromium stainless chosen specifically for precision rifle barrels. 416R was designed in collaboration with barrel makers and rifle manufacturers to deliver the consistency and durability demanded by competitive shooters and precision rifle builders. The material machines and reams cleanly for gun drilling, polishes uniformly for bore lapping—critical for accuracy—and maintains a homogeneous microstructure that responds predictably to heat treatment. The result is uniform hardness along the barrel's length, necessary for rifling to exact groove dimensions. 416R also combines high tensile strength with the toughness needed to handle standard chamber pressures shot after shot.
The manufacturing process is rigorous: the barrel is drilled, contoured, and reamed to bore diameter, then rifled and hand lapped to specification. Each barrel is individually inspected with a bore scope before it ships. The 28" length and 1:8 twist rate are sized for .264 caliber competition and hunting applications, though you'll want to consult load data and your gunsmith to confirm twist rate and barrel length suit your intended cartridge and bullets. This is a barreled action component—not a complete rifle—so plan for professional installation and chambering.
| Caliber | .264 |
| Barrel Length | 28" |
| Twist Rate | 1:8 |
| Material | 416R Stainless Steel, double stress-relieved |
| Action Type | Bolt-action |
| Finish | Stainless |
| Condition | Unthreaded, unchambered; ready for gunsmith installation |
This barrel is chambered and rifled for .264 caliber. The 1:8 twist rate is optimized for that bore. Consult PROOF's load data or speak with your gunsmith about which specific .264 cartridges (such as 6.5 Creedmoor variants) are suitable for this twist rate and bullet weights you plan to shoot.
No. This is an unthreaded, unchambered barrel blank. You'll need a qualified gunsmith to thread the breech end to your action, chamber it to your chosen cartridge, and ensure proper headspace and timing. The factory inspection and hand-lapping are complete; the machining to fit your specific rifle is the next step.
416R stainless steel was engineered in partnership with barrel makers and rifle manufacturers for precision rifle applications. It machines cleanly and polishes uniformly for accurate hand lapping, maintains homogeneous hardness along the entire barrel length (essential for precise rifling), and combines high tensile strength with toughness to handle firing pressures reliably over many shots.
Each barrel is hand lapped to specification and individually inspected with a bore scope at the factory before shipping. This process ensures consistent bore diameter, rifling uniformity, and absence of defects that could affect accuracy.
Pete Rickard
The PROOF BBL SS Bolt .264 28" Competition Barrel in 1:8 Twist is a stainless steel precision barrel built for shooters who demand match-grade accuracy. Built by PROOF Research—a manufacturer that acquired 15 years of barrel-making experience when it partnered with Lawrence Barrels in 2012—this barrel arrives from the factory ready for your gunsmith to thread and chamber. It's engineered for competition shooting and long-range precision work where bore consistency and rifling uniformity directly impact your groups downrange.
PROOF manufactures this barrel in-house using double stress-relieved 416R stainless steel, a chromium stainless chosen specifically for precision rifle barrels. 416R was designed in collaboration with barrel makers and rifle manufacturers to deliver the consistency and durability demanded by competitive shooters and precision rifle builders. The material machines and reams cleanly for gun drilling, polishes uniformly for bore lapping—critical for accuracy—and maintains a homogeneous microstructure that responds predictably to heat treatment. The result is uniform hardness along the barrel's length, necessary for rifling to exact groove dimensions. 416R also combines high tensile strength with the toughness needed to handle standard chamber pressures shot after shot.
The manufacturing process is rigorous: the barrel is drilled, contoured, and reamed to bore diameter, then rifled and hand lapped to specification. Each barrel is individually inspected with a bore scope before it ships. The 28" length and 1:8 twist rate are sized for .264 caliber competition and hunting applications, though you'll want to consult load data and your gunsmith to confirm twist rate and barrel length suit your intended cartridge and bullets. This is a barreled action component—not a complete rifle—so plan for professional installation and chambering.
| Caliber | .264 |
| Barrel Length | 28" |
| Twist Rate | 1:8 |
| Material | 416R Stainless Steel, double stress-relieved |
| Action Type | Bolt-action |
| Finish | Stainless |
| Condition | Unthreaded, unchambered; ready for gunsmith installation |
This barrel is chambered and rifled for .264 caliber. The 1:8 twist rate is optimized for that bore. Consult PROOF's load data or speak with your gunsmith about which specific .264 cartridges (such as 6.5 Creedmoor variants) are suitable for this twist rate and bullet weights you plan to shoot.
No. This is an unthreaded, unchambered barrel blank. You'll need a qualified gunsmith to thread the breech end to your action, chamber it to your chosen cartridge, and ensure proper headspace and timing. The factory inspection and hand-lapping are complete; the machining to fit your specific rifle is the next step.
416R stainless steel was engineered in partnership with barrel makers and rifle manufacturers for precision rifle applications. It machines cleanly and polishes uniformly for accurate hand lapping, maintains homogeneous hardness along the entire barrel length (essential for precise rifling), and combines high tensile strength with toughness to handle firing pressures reliably over many shots.
Each barrel is hand lapped to specification and individually inspected with a bore scope at the factory before shipping. This process ensures consistent bore diameter, rifling uniformity, and absence of defects that could affect accuracy.
