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We don’t track how you use the app - no analytics, nobody watching over your shoulder. So instead, we ask. This is every piece of feedback our testers have sent, anonymised, with what we changed because of it - and, just as openly, what we haven’t, and why.
Not everything sits on a standard Section 1 condition. Is there any chance of recording pistols held under Section 7?
What we didAdded - and while we were in there, Section 7(1) and Section 58(2) antiques went in alongside it, which were our own additions rather than yours.
A condition can now be recorded as Section 1, Section 7(1) or Section 7(3), and a firearm held outside the certificate system altogether can be flagged as a Section 58(2) antique - it takes no condition, occupies no slot and counts against no entitlement, which is the whole point of it.
Section 7(3) needed one thing the others didn’t: where. The app carries the designated sites as a closed list rather than a text box, so the record says which one, spelled the same way every time, and an outing with a 7(3) pistol on it records the site you were at. A typed venue can say anything; a named designation can be checked afterwards, which is the entire reason the field exists.
What the app does not do is tell you what any of these authorities permit. It records what you tell it. Whether a particular firearm qualifies, and what you may do with it, is between you and your licensing authority - and we took some early wording back out of the app for precisely that reason. A paraphrase of a regulation sitting next to a switch invites you to read it as the answer, and a paraphrase is eventually wrong for somebody.
Thank you for raising it. Section 7(3) holders are a small group and the app had nothing for them at all - it would not have occurred to us unasked.
I set a rifle up and got the twist rate wrong. When I went back in to correct it, the app would only let me edit the minor details - the twist was stuck.
What we didFixed the same day, and then went looking for the same fault everywhere else.
The rifle editor had quietly decided which fields counted as “identity” and locked them once saved - twist, barrel length, chambering, make, model, serial, action. The thinking was presumably that those don’t change. But the record is yours, nothing in it is a legal instrument, and locking a field doesn’t make a wrong value right. It just makes it permanent.
Twist is the sharp end of that. It drives stability and spin drift, so a mistyped twist doesn’t announce itself - it quietly biases every firing solution that rifle ever produces. A shooter who spots the mistake and can’t fix it is worse off than one who never looked.
Everything is editable now, and the same lock came off the ammunition editor and the add‑ammunition flow, where calibre, name, bullet mass and factory‑or‑handload had exactly the same problem. The one field still held is a manufacturer’s published ballistic coefficient, because that is their figure and not ours to overwrite - and even that has a way through, since you can record your own trued BC alongside it.
Thank you to the tester who found it. It had been there since the editor was written.
Have you thought about a community section in the app - a forum for swapping load data and tips?
Why notWe have, and we’re not going to. A forum needs accounts, and accounts need us to hold who you are. It needs a server holding what you posted, moderation, and a record of both. Every one of those is a thing we’ve deliberately built this app without.
Coriolis holds your firearms, your serial numbers, your certificate and where you shoot - and it holds them on your phone, not ours. There are no accounts, no analytics, and nothing about you goes online. We can’t bolt a community onto that without dismantling the part that makes it worth trusting, and a shooting app is the last place to be casual about it.
What we have done is put a Get involved link in the app. Coriolis is on Facebook - updates, what’s coming, and somewhere to ask a question that isn’t a bug report. It’s a door out rather than a room we built: nothing is held, nothing is uploaded, and it only goes anywhere when you tap it. Their terms apply once you’re over there, and we say so on the card.
Is there going to be anything for hunting and vermin control? Not every round goes down a range.
What we didYes - and it is in the launch release. A day in the field logs like a session does: the ground you were on, who gave you permission, what you were after and what you accounted for. Quarry is recorded properly rather than as a note - species, variant, sex, age, larder weight in your own units, tag number where the carcass carries one, and a green trophy score for the heads that earn it.
What it builds towards is the report. In the UK that record is your good‑reason case for a land calibre: the permission, the quarry declared on it, and the evidence you actually work it - including the blank days, because pest control is mostly blank days and a permission judged on bag alone makes a diligent shooter look absent. Elsewhere it’s simply a harvest record, and no justification is owed to anybody.
It stays out of sight unless you use it. If you only shoot paper, you’ll never see a quarry list.
Updated 30 August: this was briefly pulled from the launch release, because at that point nobody outside our own testing had used it in a field. Two testers are shooting quarry and vermin this week, which is exactly the real use we were holding out for - so it goes back in, tested rather than trusted.
Updated 11 September: shipped. Hunting and vermin control are in version 1.0.0, live on Google Play. The field session, the quarry record and the harvest report all went out with it, and the two testers who took it into a field in August are the reason it did.
I only had one load on the shelf for that rifle. The session showed it as chosen, but there was no Save button anywhere - I couldn’t get out of the screen without losing the lot.
What we didFixed, and it was our worst kind of bug: a dead end with nothing left to tap. Where only one choice exists the app showed it as settled without actually recording it, so the form read as answered while the value behind it was still empty - and Save never appeared. It hit the commonest case of all, one load for one rifle. The same fault ran through every single-option picker: rifle, case, primer, bullet, powder.
I went looking for Power‑Shok and the app had never heard of it - but I’m fairly sure those rounds are in there.
What we didThey were - all of them. The catalogue was built from ballistics tables, which list what’s inside the round rather than what’s written on the box, so every Power‑Shok sat there as “Jacketed Soft Point”. The name you’d actually ask for at the counter was nowhere in the app. Factory ammunition now carries its product line - Power‑Shok, Deer Season XP, VOR‑TX, Core‑Lokt and the rest - and you can filter the catalogue by it. Nearly a thousand loads named so far; the remaining makers are in hand.
Following up on the ammunition data - how confident are you the published figures are right?
What we didConfident enough to go looking, and we found errors. Auditing our catalogue against the manufacturers’ own 2026 tables turned up a handful of loads carrying wrong figures - one ballistic coefficient was out by nearly half, which is enough to put your drop meaningfully off at distance. All corrected against the published source. If you have saved dope for .25‑06 120gr Core‑Lokt, please re-check it.
We’d rather tell you we got something wrong than have you find out at 300 yards. There’s now an automatic check across all 2,600-odd bundled loads that flags any figure which isn’t physically possible, so a bad number can’t sit there quietly again.
Any chance of logging clays? It’s not all rifle work.
What we didAdded, for anyone with a shotgun on their certificate. All eighteen CPSA disciplines, picked by family rather than scrolled through as one long list - and each one scored the way that discipline is actually scored, not a single generic hits-out-of-total. DTL counts first and second barrel differently; ABT is one point a bird however you break it. Getting that wrong would have made the card useless to anyone who shoots seriously.
My usage graph showed usage, but I’d sold that rifle on and was waiting for my variation to come back before I could buy another. How can I be firing a rifle I haven’t got?
What we didYou can’t, and the chart shouldn’t have implied it. Your rounds were logged correctly - the fault was in the drawing. The graph plotted a flat zero across all twelve months of every year, so the stretch between disposing of one rifle and the variation coming back looked like months of holding an open slot and doing nothing with it.
That’s the wrong impression in the one place it matters most. A slot standing empty while you wait on the authority is not the same thing as a slot you couldn’t be bothered to use, and on a record you might one day put in front of a firearms enquiry officer, the difference is the whole point. The line now breaks wherever the slot is genuinely empty - sold, disposed, or waiting on a variation - and picks up again when a rifle is actually on it.
After capturing the firing detail it just drops back to the same screen. Did it work?
What we didIt had - it just never said so, because the readings landed in a panel that was folded shut. The capture now opens that panel and tells you what it got: bearing, incline, temperature, pressure, wind, position.
More usefully, it tells you what it didn’t. Out of signal, a capture still fills bearing and incline from the phone’s own sensors, so it looks like it worked while the weather quietly stays stale - and you’d be solving against the wrong air without knowing. If something’s missing, it now says so.
Restoring a backup sits on the file browser for ages after you’ve picked the file. I wasn’t sure it was doing anything.
What we didIt was - all of it, in the wrong place. The unpacking ran before the file browser could close, so your photos and documents were being restored while you were still looking at Android’s screen with no way to tell. It now drops straight back into Coriolis and shows you progress while it works.
The prompt across the top of the target scanner is unreadable - dark text on a dark background.
What we didFixed on every camera screen. The app’s text colours flip for dark mode, which is right for a page and wrong for a viewfinder - a camera overlay sits on the same dark background whichever theme you use, so in dark mode the caption was turning near-black on charcoal. It was also sitting underneath the close and torch buttons. Both sorted, and there’s now a check that stops it happening again.
Opening a load took a few seconds - is it working out the graphs each time?
What we didSpot on. The speed and drop charts run a stack of trajectory calculations, and they were doing it on the main thread - so the screen couldn’t open until they finished. They now compute in the background: the card opens instantly and the charts drop in a beat later.
I chose yards and Fahrenheit in the preferences, but everything still showed metric. That isn’t very good.
What we didFixed - a preference that isn’t honoured is worse than not offering it. Your unit choices now drive the app itself, not just the paper size: yards, Fahrenheit, inHg, mph, fps, ft·lb and inches flow through the firing solution, the load cards, the ballistic charts and the record screens. Pick your units once and the whole app speaks them.
Is there better bullet info? Some are missing anything of value - .223 and 5.56 especially. And is there a search for bullets to see what I can use?
What we didFixed where it hurt most: the factory loads that were showing blanks - GGG .223 and .308 and the like - now carry their real velocities and coefficients, so they solve and chart properly. And the ammunition catalogue search lets you browse what’s out there for your calibre, not just what’s on your shelf. We keep adding to the component-bullet reference as we go.
There isn’t a way to save the session - wrap-up seemed to just shut everything and I couldn’t find the session again.
What we didSessions now live in the Range journal and reopen any time, with their targets, notes and photos still attached - wrap-up files the session away rather than dismissing it. Nothing you record at the range is thrown away.
The barrel length box was asking for millimetres - does it do inches?
What we didIt does now - and there’s no setting to flip. Just type the number: “28” is read as inches, “711” as millimetres, and you can spell out the unit if you prefer (“20in”, “510mm”). It shows you what it worked out just underneath, so nothing’s left to guess. The same field now handles rifle weight (kg or lb) and muzzle velocity (m/s or fps) too.
Wrap Up seemed to shut the whole session down and I couldn’t find it again - there was no way to just save it and come back later.
What we didSplit it in two. “Save” keeps the session live in Current so you can pick it straight back up; “Save & close” wraps it up to Previous, and now asks first - so a stray tap can’t end your outing.
Is there a way to search for ammunition or bullets I could use - not just what I already own?
What we didAdded a catalogue search - find factory loads by calibre, bullet type, weight and price, with anything you’ve shot before flagged and linked to your own record.
Sometimes I shoot a friend’s or the club’s rifle on the day. There was no way to record those rounds without it looking like I owned the gun.
What we didAdded borrowed / temporary firearms to a session. The rounds show in your activity record, but the gun never touches your certificate or your stock - it’s transient, purely for the log.
I’d half-filled a session, tapped a tag by accident, hit Cancel - and it binned the whole session.
What we didFixed. Backing out of a tag or a dedicated-session choice now just steps back; your session stays exactly as you left it. Only the top back arrow leaves the session.
If everything’s on my phone, what happens when I change device or something goes wrong?
What we didAdded Backup & Restore to your profile - export your data to a file you keep, restore it on a new device. Your data stays yours, off our servers.
Can the app just tell me the best charge weight to load?
Why notNo - and we won’t. Coriolis Precision surfaces your data and helps you read it, but it never prescribes a load or a charge weight. That’s a safety line we won’t cross: the decision, and the responsibility, stay with you.