Precision Airgun Suite (PAS)

Precision Airgun Suite (PAS) is a UK-focused airgun ballistics toolkit for sub-12 ft·lb rifles, designed to help shooters calculate, compare, validate and save their own setup data.

BC CALCULATOR
Use real-world point-of-impact measurements to calculate an effective fitted G1 ballistic coefficient for your own rifle and projectile setup. Enter muzzle velocity, scope height, zero distance and measured POI points, then let PAS fit a BC from your data.

TRAJECTORY & PROFILE CHART
Build a trajectory from your own BC or select from the built-in projectile database. Browse by .177, .22 or slug, then Brand → Projectile, with weight and reference G1 BC shown where available.

Where PAS has no stored reference BC, you can enter your own value. PAS remembers that value for the selected projectile and clearly marks it as user supplied until a PAS reference value is available.

Use the chart to review trajectory, point of impact, remaining velocity and energy over distance. Metres and yards are supported, including HFT-friendly distance use.

COMPARE / REPORT
Compare your primary trajectory against another projectile setup. Review POI differences, impact velocity and impact energy, and generate a single-page comparison report for printing or sharing.

LIVE RETICLE VIEW
Visualise the current trajectory through a generic PAS reticle.

• FFP and SFP simulation
• MIL and MOA
• Continuous magnification slider
• Quick jump-to magnification points
• Preferred magnification recall
• Metres / yards
• HFT kill-zone sizing
• Optional reticle labels
• Generic PAS reticle families — no manufacturer reticle artwork is copied

SAVED RIFLE PROFILES
Save rifle profiles once and use them across both Trajectory and Reticle View. A profile keeps the ballistic setup and scope/reticle settings together, making it easier to switch between rifles without re-entering everything.

FIELD & PRINT OUTPUTS
PAS can produce practical reference material including:

• A6 Field Chart
• A6 Trajectory Graph
• A6 Reticle POI Card
• Print all 3 on one A4 sheet
• Single-page A4 Compare / Report

UK SUB-12 ENERGY GUARD
PAS includes a clear energy warning system for UK sub-12 use. Higher calculated muzzle-energy values are highlighted, and very high values can block trajectory/output generation until the setup is corrected.

OFFLINE-FIRST & PRIVATE
PAS is designed to work without an internet connection for its ballistics features. Rifle profiles, ballistic settings and remembered user BC values are stored locally on the device. If Android backup/device transfer is enabled by the user, eligible app data may be included by Android.

BUILT FOR CHECKING, NOT GUESSING
PAS is intended as a practical calculation and validation tool. Ballistic results should always be checked against real-world range data, and users remain responsible for ensuring their equipment complies with applicable laws and limits.

Precision Airgun Suite
Evidence • Validation • Confidence