The Caliber is a 90% tungsten steel tip set from Harrows, which says it has been making darts for more than 50 years. Harrows sells it exclusively through one online retailer, where it was first listed in August 2024. The set comes with spare shafts and flights and a travel case, so it is ready to throw from the box.
Key Specifications
The linked listing is the black 22g version: a straight 6.5mm barrel, 51mm long, with ring grooves along most of its length.
- Material
- 90% tungsten, black or silver finish
- Weights
- 21g, 22g, 23g, 24g, 25g, 26g, 28g, 30g (steel tip; 30g silver only)
- Barrel length
- 51mm (all weights)
- Barrel diameter
- 6.3mm (21g), 6.5mm (22g and 23g), 6.6mm (24g), 6.7mm (25g), 6.9mm (26g), 7.2mm (28g), 7.3mm (30g)
- Grip
- Ring grooves in four grip zones
- Shafts
- Speedline, two sets (white and black)
- Flights
- 100 micron, two sets (blue and red)
- Included
- Travel case
- Price band
- Value
How They Compare
Spec sheets mean more next to the alternatives. Here is the Harrows Caliber against three similar darts we have covered, using the figures each manufacturer publishes.
| Harrows Caliber | Red Dragon Javelin (opens in a new tab) | Target Artemis (opens in a new tab) | Winmau Ton Machine (opens in a new tab) | |
|---|---|---|---|---|
| Price band | Value | Value | Value | Value |
| Tungsten | 90% | 85% | 80% | 80% |
| Weights | 21g to 30g | 20g to 26g | 21g to 26g | 21g to 27g |
| Barrel length | 51mm | 54.6mm | 50.3mm to 52.0mm | 45.7mm to 50.8mm |
| Barrel diameter | 6.5mm (22g) | 6.35mm (22g) | 6.6mm (22g) | 6.6mm (22g) |
All four sit in the Value band. The Caliber has the highest tungsten content of the four and the widest spread of weights, up to 30g.
Who They Suit
| If you... | Fit | Why |
|---|---|---|
| Like a light, slim dart | Good | 21g at 6.3mm is the lightest option |
| Want a thick, heavy barrel | Good | 7.2mm at 28g and 7.3mm at 30g |
| Want grip cuts along the whole barrel | Partial | Harrows describes four grip zones rather than a full-length grip |
| Want a very smooth grip | Partial | Harrows publishes no grip rating |
| Prefer a short barrel | Poor | 51mm at every weight |
| Want quick-swap points | Poor | Standard steel points, no swap system |
| Are working to a tight budget | Good | It sits in the Value band |
If you want a shorter barrel, the Winmau Ton Machine comes down to 45.7mm at 24g, while the Red Dragon Javelin is longer at 54.6mm. For points you can change with a tool, the Target Hydro uses Target’s Swiss Points and sits a band higher, in Moderate.
What Owners Say
The headline score is 4.6 out of 5 from around 980 ratings at the only retailer that sells it, shared across every colour and weight. 73% are five stars and 1% are one star. Because the set is sold in one place, there is no manufacturer-hosted figure or second retailer to compare against, and independent coverage is thin: one video reviewer called it one of the best-value sets Harrows has put out.
Owners mostly talk about the quality they get for the money, the grip and how the weight feels in the hand. The supplied flights are the one area where feedback is mixed.
What owners consistently praise
- Quality that buyers rate highly for an entry-level price
- A grip that owners pick out as one of the best things about the set
- Comfortable weight and balance in the hand
- Spare shafts and flights in the box, so there is nothing else to buy to start playing
Common criticisms
- The supplied flights draw mixed feedback
- Beyond buyer ratings there is little independent review coverage to check the set against
The Grip: What to Expect
Harrows describes the Caliber’s grip as four “ultra grip zones”, meant to give a consistent hold wherever you place your fingers, and its barrel graphic shows bands of ring grooves running the length of the barrel. The barrel stays straight from front to back, so the grip does not push you towards one position.
Owners back up the grip claim: it is one of the positives buyers mention most. Harrows does not publish a grip rating, so if you are coming from a very aggressive or very smooth dart, it is hard to place this one exactly before you have it in your hand.
The Consensus
Owners rate the Caliber highly, and the score comes from a large pool of buyers. It pairs 90% tungsten, more than the other Value-band sets we cover, with a grip buyers like and a full bundle of spares.
The caveats are about evidence and extras rather than the darts themselves. The flights split opinion, and with only one retailer and very little independent coverage, almost everything known about how it plays comes from buyer ratings. Players who want a short barrel or quick-change points should look elsewhere.
How we compile this page
We don’t throw every dart ourselves. Instead we gather the manufacturer’s published specifications and weigh up the reception from owners and independent reviewers, then flag where they disagree so you can make up your own mind. Where a headline rating comes from manufacturer-hosted reviews, we say so, because those tend to skew positive.