Compound Bow Case: How to Measure Before You Buy

Fletchwise guides are independent and hype-free – we are not sponsored by any case brand and we do not sell cases.

Axle-to-axle is a spec that exists to describe how a bow shoots, not how it packs. It is measured between the centers of the two cam axles – so it excludes the cams themselves, which project past the axles at both ends. Depending on the cam system, that is easily an inch or more of bow that ATA does not account for, and it is at exactly the end of the bow that has to clear the inside of the case.

The result is a specific and common failure. Someone with a 29 inch ATA bow buys a case whose interior is comfortably longer than 29 inches, and the bow does not go in – the cams hit the ends. It happens with well-regarded cases and mainstream bows; forum threads about a Mathews V3 at 29 inches ATA not fitting a Pelican 1745 are a good example of how counter-intuitive it feels when it happens to you.

So the number you need is not on the spec sheet. You have to take it off the bow.

Two traps in the specs themselves. First, most cases advertise exterior dimensions – the usable interior is smaller, and in a hard case the foam takes a substantial bite out of it. Look for a stated interior figure, and if the listing does not give one, assume less than you hope. Second, some listings quote the ATA rating of bows they fit, which puts you right back where you started; the interior length in inches is the number to trust.

If your bow is right at the limit of a case, foam is where the fit is won. Pluck foam can be reconfigured, and archers routinely rearrange or remove blocks to make a tight bow sit diagonally or nest around the cams. It is a legitimate fix, not a bodge – but it is easier to buy a case an inch longer.

If your bow is 40 inches ATA or more – long target rigs, some older hunting bows, and plenty of recurve setups – you are in a small corner of the market. Most production cases, hard and soft, are built around the 30 to 38 inch bows that dominate sales, and above that the options thin out fast. Plan for a specialist or oversized case rather than assuming you will find something at a big-box store, and check our large and XL bow cases page for what that segment looks like.

The same applies in reverse to very short bows: they fit almost anything, but a bow rattling around in a much larger case is not protected either. Foam that holds the bow still is the point, and a bow with room to move in a hard case can arrive worse off than one in a snug soft case.

Sizing solved, the other half is what you are protecting the bow from – and it is usually not what people assume. A bow is not fragile in the way glass is. The things that actually cause damage in transit are point loads on the cams and limbs, crushing from other bags stacked on top, and the sight taking a knock and losing its zero. Nothing in that list is helped by a case being generally sturdy; all of it is helped by the bow being immobilised.

That reframes the hard-versus-soft question. A hard case with the bow loose inside is worse than a soft case that holds it firmly. Once you have measured, the real questions are whether the foam grips your bow’s shape and whether the sight is protected from a direct hit – which is where the hard case and soft case pages pick up, and our choosing a bow case guide walks the whole decision in order.

Run this list. Have you measured cam edge to cam edge rather than reading ATA off the spec sheet? Does the case state an interior length, and is it at least 1-2 inches over your measurement? Have you decided whether the quiver and stabilizer travel mounted? If you are flying, does the case take TSA-approved locks – and have you checked the airline’s own size and weight limits, which bite before the case’s own dimensions do? Does the foam configuration suit your bow’s shape, or will you be reconfiguring it?

Get those five right and the case will fit. Get the first one wrong and none of the others matter. If you have not bought the bow yet, it is worth knowing that bow choice quietly constrains case choice – a 30 inch ATA hunting bow has a hundred cases to pick from and a 40 inch target rig has a handful.