Load data. Range sessions. Charts that tell you something. All under one roof. Say goodbye to complex spreadsheets and scattered notebooks. Take the hassle out of your workflow — and get back to doing what you love.
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30 days free
Fast and easy or thorough and organized? Choose both. Patent-pending technology and purpose-built workflows capture the right data instantly. Build on your range sessions to see exactly what changed between your best group and your worst.
We didn't guess what reloaders need. We are reloaders. Every feature exists because we ran into the same problems you did.
Auto-correct perspective distortion and produce accurate shot measurements. Detect holes automatically.
Precise, individual shot placements across large sample sizes.
Every field optional. Capture what you need at the range, deal with the rest later.
Easy to use charts that can quickly determine the optimal load.
Snap a photo of your target at the range. Markfire and TrueScale do the rest — detecting every impact, measuring every distance, and delivering data you can trust. No manual input. No guesswork.
No rulers, no reference objects, no manual calibration. Embedded markers at known positions let the system calculate exact pixel-to-inch scale from every photo automatically.
Phone cameras rarely capture a perfect rectangle. Even a slight angle skews measurements. TrueScale detects and corrects for camera angle so your data reflects reality — not your phone's point of view.
No tapping on screen. No marking impacts by hand. The target's dot grid pattern lets the system identify exactly where shots landed by detecting what's missing — down to the smallest changes. In the event a marker is slightly off, it can easily be corrected.
No tripods. No dedicated cameras. No apps running in the background. Just the phone in your pocket and a TrueScale target downrange.
Designed to perform with wrinkled targets, variable lighting, and imperfect photos. The marker system is resilient enough to work the way you actually shoot — not just in a lab.
Download and print TrueScale targets on any standard printer. No razor-and-blades tactics. Print as many as you need before every range trip.
Three and five shot groups are tradition — but statistically, they're noise. You need a larger sample size to truly know how a load performs. The problem? Too many shots into one target turns into a single ragged hole where individual impacts are impossible to distinguish. Composite targets solve this. Shoot in sets, swap in fresh paper, and let the software combine everything into a single, statistically meaningful result.
Set 1 (5 shots)
Set 2 (5 shots)
Set 3 (5 shots)
Composite (15 shots)
Shoot 5-10 rounds per paper and swap to a fresh target. Each set stays clean and readable, so every individual impact is accurately detected — no overlapping craters to guess through.
Every set you capture gets merged into a single aggregate target. All calculations run across the full data set as if every round landed on one sheet.
Extreme spread only tells part of the story. With every shot individually placed across your composite, you get accurate mean radius, standard deviation, and center of impact — meaningful measurements that require placing every shot.
Rigid forms kill momentum. Markfire doesn't force you to complete every field before saving. Log your charge weight and bullet at the bench, add targets and group data at the range, drop in velocities that night. Your workflow. Your order. Your pace.
Nothing is mandatory. Save a load with just a charge weight or build out a full record with every variable. The software never locks you out for leaving something blank.
Started a record at the bench and headed to the range? Pick up where you left off. Add velocities, attach target data, update notes — your records are living documents, not locked entries.
Tap in the essentials between strings when time is short. Clean it up, add detail, and review patterns when you're back at your desk.
What's my most accurate charge weight? At what velocity does dispersion become significant? Did neck sizing make a meaningful difference? Markfire's charts are built to answer exactly those questions — visually, instantly, and without digging.
Plot your ladder results instantly. See where groups tighten up and where MR drops — the clearest signals that you're closing in on an optimal charge.
Visualize how seating depth changes affect precision. Spot the sweet spot where your groups tighten.
Compare two or more loads across every variable in one view. See exactly what changed between your best performer and your worst — and why.
Track extreme spread and standard deviation across loads. See consistency patterns quickly and easily.
Your loads don't exist in isolation. See how performance trends across multiple range trips — is a load getting more consistent or was that first group a fluke?
Charts built to answer specific questions that reloaders actually ask. No generic graphs. No vanity metrics. Just the visuals that help you uncover the truth.
A subscription unlocks full access to add and modify your data. But if you ever step away, your data doesn't disappear.
Every load, every chart, every session — always available. Your data doesn’t expire if your subscription does.
Want to take it with you? Export everything, including images.
Includes 30-day free trial
2 months free
Includes 30-day free trial
30 days free. No credit card required.
Unlimited guns + ammo (factory + handloads)
Unlimited sessions, targets, and shots
Markfire TrueScale Target photo processing (true-scale view)
Hole detection on supported targets/photos
Manual shot marking + precision drag editing
Group + velocity statistics
Velocity import from CSV and FIT
Chart builder across sessions
Full export/import backup (including images)
All fields optional: track simple or detailed
Do I need the Markfire TrueScale Target for automatic hole detection?
Yes. Automatic hole detection relies on the Poisson-disc dot pattern printed on TrueScale targets. The system identifies shots by detecting which dots are missing. Without that pattern, automatic detection isn’t possible — but you can still mark shots manually.
What if I want to shoot my own target?
No problem! Simply tape the TrueScale target to the back of any standard target.
What if I accidentally shoot the markers?
The redundancy is there for a reason. While more are better, at a minimum you only need 4 markers — one on each side of the target.
Do I need a reference line or a ruler in the photo?
No. TrueScale targets have embedded AprilTag markers at known positions around the border. The system uses these to calculate exact pixel-to-inch scale automatically — no rulers, reference objects, or manual calibration needed.
How does the composite (aggregate) target work?
Shoot in sets of 5–10 rounds, swapping to a fresh target each time. Capture each target individually. Markfire merges all detected shots into a single composite view and runs calculations across the entire data set — giving you statistically meaningful results without the mess of overlapping holes.
Can I import velocities from my chronograph?
Yes. Markfire supports velocity import from CSV and FIT files. Pull data from your LabRadar, MagnetoSpeed, or any chronograph that exports to these formats and attach it directly to your session.
Does it work on mobile and desktop?
Yes. Markfire is a web application that works on any modern browser — phone, tablet, or desktop. Capture data at the range on your phone and review it later on a larger screen.
What happens if my subscription expires?
Your data doesn’t disappear. You keep lifetime read-only access to everything — every load, every session, every chart. You can also export all your data, including images, at any time. Resubscribe whenever you’re ready to start adding and editing again.
Is this just another logbook?
If you want it to be, sure, but you’d be missing out on a lot of time savings! Patent-pending TrueScale targets automate shot detection and measurement. Composite targets enable statistically meaningful sample sizes. Charts are purpose-built to answer the questions reloaders actually ask. It’s the tool we wished existed — so we built it.