Strelok QuickLoad — the complete guide

Strelok QuickLoad is available on the App Store (iPhone) and Google Play (Android). The entire catalog — 34,193 published loads across 519 cartridges, 176 powders — ships with the app and works offline, and the prediction engine runs entirely on your device.

Create your account

QuickLoad asks you to sign in before you enter the app. It's the same Strelok account used by Strelok Pro — one login for both apps, syncing rifles, loads and inventory.

• iOS: Sign in with Apple, Continue with Google, or email and password.
• Android: Continue with Google, or email and password (with a "Forgot password?" recovery flow).
• Email sign-ups may need to confirm the address before the first sign-in.

The app reinforces this everywhere: the pressure tile flips red and reads OVER SAAMI when a predicted charge exceeds the standard, load-detail pages flag published maxima that exceed SAAMI/CIP, and chrono calibration is capped at ±50% so a typo can't produce a dangerous prediction.

QuickLoad uses the same five-tab layout on iPhone and Android:

Predict, Calibrate, Load Lab, Rifles and Inventory don't have their own tabs — you reach them from the cards on Home (or rows under More).

Predict a load on Home opens the interior-ballistics engine: it predicts muzzle velocity, peak chamber pressure and case fill from your components, computed on-device.

1. 1Pick your cartridge, powder and bullet weight from the three dropdowns. (The lists show only combinations the engine can model — 87 powders have engine parameters.)
2. 2Drag the charge slider. The label shows the published range for that combination; the slider extends slightly past it so you can see the trend.
3. 3Read the three tiles: Velocity (fps), Peak pressure (PSI — turns red with OVER SAAMI when it exceeds the standard) and Case fill (%).
4. 4Study the charge-sweep chart: velocity and pressure curves across the whole charge range, the shaded published band, the dashed SAAMI max line, and a draggable marker for the exact charge you're considering.

Once you've calibrated (next sections), the card notes "Personalized to your rifle" and every prediction is adjusted to your barrel and powder lot.

The Loads tab searches the catalog by cartridge name. Every load is grounded in a published source — Hodgdon Reloading Data Center, Vihtavuori, Norma and Alliant Powder.

Cartridge page

Each cartridge opens with a spec card — SAAMI/CIP max pressure, case capacity in grains of water, bullet weight range and common twist — and its full load list. Filter chips narrow by Bullet weight and Powder maker.

Load detail

• Charge → velocity ladder from start to max charge.
• Pressure gauge against the SAAMI/CIP maximum, with a red flag if the listed max exceeds the standard.
• Cartridge cross-section, the powder's position on the burn-rate spectrum, and the full component setup — case, primer, bullet diameter, barrel and twist.
• A source card attributing the published data.

Ready to try it? Log this load at the bottom opens a new logbook entry prefilled with the components.

The Powders tab ranks every powder by burn rate, from fastest to slowest, with the manufacturer and how many catalog loads use it. The Has load data toggle (on by default) hides powders with no published loads. Use it to find neighbors on the burn-rate chart when your usual powder is out of stock — then verify with published data before loading.

The logbook is where QuickLoad earns its keep over a paper notebook: every entry feeds the analytics in Load Lab and the calibration engine.

Logging a session

1. 1Tap New entry (or Log this load from a catalog load to prefill it).
2. 2Fill the Load card: cartridge, bullet and weight, charge, powder, primer, case, COAL and the day's temperature.
3. 3Enter your chronograph string shot by shot — the entry computes average, SD and ES live as you add velocities.
4. 4Record the group size in MOA and any notes, then save.

Each saved entry shows its average velocity, SD and group size at a glance in the list.

Published data and factory predictions describe a test barrel, not yours. Calibrate to my rifle (on the Predict screen) tunes the engine to what you actually chronographed:

1. 1Pick the cartridge, powder and bullet weight of a load you've actually shot.
2. 2Enter the charge and your measured velocity.
3. 3Review: factory prediction vs what you measured, and the new calibration factor with its velocity offset.
4. 4Tap Save calibration. Every future prediction is personalized; Reset returns to factory.

Load Lab turns your logbook into load-development analytics. It needs at least two logged charges of the same load with chrono strings, and it sharpens as your logbook grows:

• Velocity node (OCW) — the charge window where velocity flattens (low fps-per-grain), a candidate accuracy node.
• Lowest spread — the charge with the smallest SD across your strings.
• Temperature sensitivity — fps per °F for the powder, from your own logs across range days.
• Barrel life — a per-rifle round counter against expected barrel life, turning red as you approach it.

Rifles (Home or More) holds your rifle profiles: name, cartridge, barrel length, twist and notes, plus the barrel-life settings — expected life in rounds and any rounds fired before you started logging.

Inventory tracks components on hand: powder, primers, brass and bullets, each with quantity, unit and lot number. Lot numbers matter — a new powder lot is a reason to re-verify a load and re-calibrate.

If a cartridge, powder or load isn't in the catalog, Home → Find reloading data searches beyond it. The flow checks the local catalog first, then the shared community catalog (entries carry Verified or Community badges and a vote score), and finally runs an AI-assisted lookup that is always grounded in a published source — never guessed. Review the specs, check the View source link, then Add to catalog.

QuickLoad and Strelok Pro share one Strelok account. Sign in with the same login and:

• Rifles, loads and inventory sync across your devices (Pro feature).
• On iOS, Send to Strelok Pro moves a developed load — with its measured muzzle velocity — straight into the exterior-ballistics app. Develop the load here, dial the hold there.
• Owning one app's lifetime unlocks 30% off the other's: Strelok Pro lifetime owners see a discounted QuickLoad lifetime on the iOS paywall, and vice versa in Strelok Pro.

• Both subscriptions start with a 7-day free trial; cancel anytime, and they auto-renew unless cancelled.
• New phone or reinstall? More → Subscription → Restore Purchases. Your entitlement is also stored on your Strelok account, so Pro follows your sign-in across devices and platforms.

The two apps are near-identical — same tabs, engine, catalog, gating, pricing and safety copy. The differences:

Still stuck? More → Help & feedback sends a message straight to us, or use the contact page. Account deletion is under More → Account, or see the account deletion page.