Spartan Precision

Spartan Precision Rifles operates as a licensed 07 FFL and SOT manufacturer out of Caldwell, Idaho, specializing in high-precision custom rifle builds and gunsmithing services. They work exclusively on modern bolt-action platforms—no handguns or AR platforms. Located at 4018 East Linden St., they operate by appointment only.

Spartan handles a wide range of quality actions and platforms:

• •Actions: Defiance, Surgeon, Impact, Stiller, Curtis, BAT Machine, Barnard, American Rifle Company
• •Stocks: Manners and McMillan
• •Barrels: Bartlein, Krieger, Brux, Obermeyer, Hawk Hill, Proof Research
• •Platform compatibility: Remington 700 and clones (Defiance, Surgeon, Stiller, ARC, Bighorn), Winchester Model 70, Accuracy International, Savage, Ruger RPR

• •Complete Rifle Builds (parts sourced by Spartan):
• •10-12 month turnaround
• •$2,500-$3,000 deposit required for parts
• •Balance due before delivery
• •Lead time driven primarily by stock and barrel manufacturing

• •Customer-Supplied Parts Builds:
• •2-4 week turnaround (labor only)
• •No payment required until completion
• •Faster timeline since parts are already in-house

Pro tip from their FAQ: Order parts yourself from AltusShooting.com (stocks/actions), BugHoles.com (barrels), or MileHighShooting.com (accessories), then ship directly to Spartan's shop to save a shipping step.

A $50 assembly/disassembly fee applies to customer rifles.

Every barrel is dialed in to center the bore axis within ±.0002" using precision-ground tapered indicating rods—measured with a Mitutoyo .0001" dial indicator. This ensures concentricity without relying on outside diameter measurements. Fluting is performed after chambering to prevent interference and ensure perfect alignment to top center.

Spartan chambers most common rifle calibers plus several wildcats:

.204 Ruger • .223 Remington • .223 Ackley • .22-250 • 6mm XC • 6mm Dasher • 6mm BR/BRX • 6 Creedmoor • 6.5 Creedmoor • .243 Winchester • .260 Remington • 6.5 PRC • .284 Winchester • .300 Blackout • .300 WSM • .30-06 • .308 Winchester • .300 Win Mag • .300 PRC • .338 Lapua • .338 Edge • .375 Cheytac • .416 Barrett • .510 DTC

Custom wildcats accepted with your own reamer (JGS Precision preferred).

Spartan manufactures custom bolt knobs in 6061 aluminum with Graphite Black Cerakote finish, threaded for 5/16 x 24 TPI (standard and Surgeon/Bighorn styles). Both are in-house products available through their online shop.

Spartan Precision Rifles 4018 East Linden St. #103 Caldwell, Idaho 83605

📞 208-454-9695 📧 [email protected] ⏰ Monday–Friday, 9am–5pm MST Appointment only—not open to walk-ins