Compare how much ammunition each firearm carries per kilogram
Returns, for each of up to 5 firearms, its ammunition as a weight, in two kinds of figure that are never mixed.
- stringheaderrequired
Your API key.
Authorization: Bearer <key>is accepted in its place.
- stringrequired
Comma-separated firearm slugs, maximum 5.
- Example
- string
A load whose bullet the estimate uses, for the firearms that fire its cartridge. Without it, each cartridge's typical bullet.
- Example
- numberdefault
5A weight of full magazines to fill, in kg.
- Range
- 0.1 – 100
- Example
- integerdefault
7Full magazines in the estimated basic load.
- Range
- 0 – 50
- Example
- integer
Rounds in the estimated basic load. Default:
magazinestimes the capacity.- Range
- 1 – 10000
- object
The response payload.
- object
The method behind every figure in the answer.
- string
The method the figures were computed with.
- string
The method by name.
- string
The arithmetic and the model as written, with units, so the figures can be reproduced.
- number
The model's largest error on its reference cartridges, in percent: the range every estimate carries.
- number[]
The smallest and largest case envelope the model was fitted on, in cm³.
- object[]
The cartridges the model was fitted to.
- object
The load every firearm was answered for.
- number
The weight budget in kg.
- integer
Full magazines in the estimated basic load.
- integer | null
Rounds in the estimated basic load, as given. Null when each firearm's came from its capacity.
- string | null
The load named, if any.
- string[]
The query parameters not sent, answered from their defaults.
- object[]
One result per firearm, in the order their ids were given.
- object
The firearm this result is for.
- object | null
The cartridge the estimate is for. Null when the firearm records none.
- object | null
A full magazine, derived. Null when the feed is not detachable or a weight or the capacity is not recorded.
- object | null
What
budget_kgof full magazines holds. Null when no full magazine was derived. - object | null
A basic load's mass by the cartridge-mass model. Null when the cartridge lacks the figures the model needs.
- object | null
Against the option that carries the most rounds per kilogram, leaving out any magazine the model finds lighter than its rounds. Null on that option, on a lone firearm, and where no magazine was derived.
- string[]
Why a figure is missing, or why a derived one is doubtful.
- string | null
Why nothing could be computed for this firearm. Null when anything was.
- 400
VALIDATION_ERRORValidation error - 401
UNAUTHORIZEDAPI key required - 403
FORBIDDENValid key, not permitted - 404
NOT_FOUNDResource not found - 429
RATE_LIMITEDRate limit exceeded - 500
INTERNAL_ERRORUnexpected server error
- Minimum tier
- Builder+
- Monthly quota
- 25,000/mo
- Rate limit
- 60/min
- Daily cap
- 2,000
Figures shown are for this endpoint's minimum tier. Higher tiers raise every limit.
This read answers conditional requests. Keep the ETag from a response and send it back as If-None-Match: an unchanged record returns 304 Not Modified with no body, which counts toward your per-minute rate limit but not your daily allowance.