Custom precision rifle ammunition being prepared by Precise Arms

    Custom Ammunition

    Load development tailored specifically to your rifle's chamber for unmatched consistency and performance.

    The Science of Consistency

    Off-the-shelf ammunition is built to fit every rifle within SAAMI specs. Our custom ammunition is developed to fit ONE rifle perfectly—yours. We treat load development as an exact science.

    By controlling every variable—from brass sorting by weight and volume, to exact powder charges measured to the kernel, to precise bullet seating depth relative to your rifling lands—we eliminate the inconsistencies that cause groups to open up downrange.

    • Premium brass prep: annealing, uniforming, and sorting
    • Powder charges weighed to 0.02 grain accuracy
    • Bullet sorting by base-to-ogive and weight
    • Custom seating depth optimization (CBTO)
    • Comprehensive chronograph data and DOPE provided
    Custom precision rifle ammunition being prepared by Precise Arms

    The Development Process

    How we extract maximum performance from your specific rifle platform.

    Barrel Profiling

    We measure your exact chamber dimensions and throat erosion to determine the optimal bullet seating depth.

    Velocity Nodes

    We conduct ladder tests over a precision chronograph to find the most stable velocity nodes for your barrel harmonics.

    Production Runs

    Once the perfect load is established, we can produce that exact recipe in volume for your upcoming matches or hunts.

    Custom Rifle Ammunition & Load Development in Bellevue, WA

    Precise Arms develops custom ammunition for shooters who want dependable, repeatable performance from a specific rifle. Our process is built around your firearm's chamber, barrel dimensions, intended use, and performance goals—not a one-size-fits-all factory specification.

    Based in Bellevue and serving clients throughout the Seattle area and the Pacific Northwest, we provide detailed load development for precision rifles, hunting rifles, and other serious shooting applications. If you are investing in a custom precision rifle, purpose-built ammunition is an important part of getting the most from it.

    Custom Ammunition FAQs

    What is custom ammunition load development?+
    Load development is the process of evaluating components and performance variables to identify an ammunition recipe that performs consistently in one specific rifle. The goal is dependable accuracy, repeatable velocity, and confidence in the rifle's intended application.
    Can you develop ammunition for a rifle I already own?+
    Yes. Custom ammunition development can be performed for an existing rifle when the goal is to improve consistency and better match the ammunition to that rifle's chamber and barrel characteristics.
    Do you offer repeat production runs?+
    Once a load has been established, Precise Arms can discuss production runs for future matches, hunts, or continued use, helping maintain consistency from one batch to the next.
    How do I get started?+
    Precise Arms works by appointment. Contact us to discuss your rifle, intended use, and goals, and we will determine the best next step for your project.

    Stop Guessing. Start Knowing.

    Contact us to start your custom load development process and unlock your rifle's true potential.

    Discuss Your Project