Hammerli 150
- Category
- Pistol
- Barrel
- 286 mm
- Weight, empty
- 1.34 kg
- Introduced
- 1973
About
What it is, and why it matters
The Hammerli 150 is a Swiss single-shot free pistol built for ISSF 50 metre precision target shooting. Introduced in 1973, it uses a small Martini-style rear-hinged falling-block action operated by a left-side cocking lever with an ejector, and fires the .22 Long Rifle cartridge through a mechanical match trigger. Its futuristic design for the era featured an enlarged trigger guard and a free-floating wooden front shaft that could house adjustable counterweights, along with an orthopedic adjustable grip and match-grade adjustable sights, and it was developed to challenge rivals such as the Soviet MTs55-1.
Hämmerli free pistols dominated Olympic and ISSF 50 metre pistol competition for decades, and the Model 150 broke from the maker's earlier complex multi-stage designs with a cleaner, more modern layout whose free-floating wooden forend could be loaded with counterweights to tune the pistol's balance.
Mechanically triggered predecessor of the electronically fired Model 152. Sources give a barrel length of about 286 mm and an empty weight around 1340 g.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Hämmerli
- Category
- Pistol
- Country
- Switzerland
- Status
- Discontinued
- Produced
- 1973 to 1991
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 286 mm
- Weight, empty
- 1.34 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Falling block
- Firing mechanism
- Internal hammer
- Trigger
- Set trigger
- Capacity
- 1
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Steel
- Barrel
- Steel
- Stock
- Walnut
- Finish
- Blued
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 330 m/s
- Muzzle energy
- 141 J
- Effective range
- 50 m
Trajectory
What the round does downrange
Solved from the muzzle figures and the bullet. The dashed rule is the effective range on the record, and the crosses are the steps the solver returned.
No load solved for this record yetThe flight path is computed from a cartridge and a bullet. This record has no ammunition filed against its chambering, so there is nothing to solve.
Features
What it has
What the record lists as fitted, drawn from the catalogue.
Single shot martini action
Left side cocking lever
Enlarged trigger guard
Free floated barrel- Adjustable barrel weights
Adjustable orthopedic grip
Adjustable match sights
Wooden forend counterweight housing
Standing
How it compares
Each figure against the firearms of the same type and cartridge that record it, or of the same type where that cartridge has too few. Positions are read to the nearest tenth.
| Measurement | This firearm | Median | Position |
|---|---|---|---|
| Empty weightAmong 151 .22 Long Rifle pistols | 1.34 kg | 900 g | Heavier than about 90% |
| Barrel lengthAmong 155 .22 Long Rifle pistols | 286 mm | 140 mm | Longer than about 90% |
| Magazine capacityAmong 156 .22 Long Rifle pistols | 1 | 9 | Holds fewer rounds than about 90% |
Answers
Questions about the Hammerli 150
How much does the Hammerli 150 weigh?
The Hammerli 150 weighs 1.34 kg (2.95 lb) empty.
What caliber is the Hammerli 150?
The Hammerli 150 is chambered in .22 Long Rifle.
How many rounds does the Hammerli 150 hold?
The Hammerli 150 holds 1 rounds.
How long is the Hammerli 150?
The Hammerli 150 has a 286 mm (11.26 in) barrel.
Who makes the Hammerli 150?
The Hammerli 150 is made by Hämmerli (Switzerland). It was designed by Hämmerli.
When was the Hammerli 150 introduced?
The Hammerli 150 was introduced in 1973 and discontinued in 1991.
How does the Hammerli 150 operate?
The Hammerli 150 uses a falling block action, and its firing mechanism is internal hammer.
Compatibility
Which parts fit this firearm
Studio
Every part that mounts on this, resolved
Not a list the maker typed out: the answer comes from the mounts this firearm exposes and the interface each part needs, so it stays right when either one changes.
- Every part that mounts on any firearm in the catalogue
- Interface standards, platforms and fit overrides
- The same answers through the API and the MCP server
Requires a signed-in GunSpec account on the Studio plan. The answer is computed per part, so it is not part of the public record.
Provenance
What the record holds
Every figure above was taken from one of these pages. The confidence reflects how much of the record came from a page a claim can be checked against.
In service
Provenance
Confidence in this record
72%
Stockists
Where to buy
Offers link straight to the shop. GunSpec never takes the order.
No shop has listed this firearm yet
Stock and prices come from the shops themselves. If you sell this firearm, you can list it and it appears here.
List a firearmMCP
Ask an assistant about it
The same record, reached the way a person asks for it rather than the way a program does.
Ask GunSpec
Works with
Point an MCP client at GunSpec and it answers from the catalogue rather than from memory. A free key covers the read tools.
API
The call that returns this record
The same fields, in the same units, from the same endpoint the page reads.
curl --request GET \ --url 'https://api.gunspec.io/v1/firearms/hammerli-150' \ --header 'X-API-Key: your_key'{ "id": "hammerli-150", "name": "Hammerli 150", "manufacturer": { "id": "hammerli", "name": "Hämmerli", "countryCode": "CH", "foundedYear": 1863, "website": "https://waltherarms.com", "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-02-18 03:40:45", "updatedAt": "2026-02-18 03:40:45", "version": "e1209cd056d8e246d5f5bd05c752faecd47fbc79eba9c411b20e724db5ca3e62" }, "category": { "id": "pistol", "name": "Pistol", "description": "Handguns designed to be fired with one or two hands" }, "country_of_origin": "CH", "year_introduced": 1973, "barrel_length_mm": 286, "weight_empty_g": 1340, "action_type": "falling_block"}