Evidence map›Paper›PMID 28078445›Full record

ArticleInternational journal of legal medicine2017

Energy-dependent expansion of .177 caliber hollow-point air gun projectiles.

Ronald Werner, Benno Schultz, Britta Bockholdt, Axel Ekkernkamp, Matthias Frank

Abstract read
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In one paragraph

Article in International journal of legal medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
3.2field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 5 citations in OpenAlex.

  1. Wounding potential of 4.4-mm (.173) caliber steel ball projectiles.International journal of legal medicine · 2019
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Ronald WernerLandeskriminalamt Brandenburg (LKA BB), Forensic Institute, Tramper Chaussee 1, 16225, Eberswalde, Germany.
Benno SchultzLandeskriminalamt Brandenburg (LKA BB), Forensic Institute, Tramper Chaussee 1, 16225, Eberswalde, Germany.
Britta BockholdtDepartment of Legal Medicine, University Medicine Greifswald, Kuhstraße 30, 17489, Greifswald, Germany.
Axel EkkernkampDepartment of Trauma and Orthopedic Surgery, University Medicine Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany.
Matthias FrankDepartment of Trauma and Orthopedic Surgery, University Medicine Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany. matthias.frank@uni-greifswald.de.
Universitätsmedizin Greifswald · DELandeskriminalamt Niedersachsen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Amongst hundreds of different projectiles for air guns available on the market, hollow-point air gun pellets are of special interest. These pellets are characterized by a tip or a hollowed-out shape in their tip which, when fired, makes the projectiles expand to an increased diameter upon entering the target medium. This results in an increase in release of energy which, in turn, has the potential to cause more serious injuries than non-hollow-point projectiles. To the best of the authors' knowledge, reliable data on the terminal ballistic features of hollow-point air gun projectiles compared to standard diabolo pellets have not yet been published in the forensic literature. The terminal ballistic performance (energy-dependent expansion and penetration) of four different types of .177 caliber hollow-point pellets discharged at kinetic energy levels from approximately 3 J up to 30 J into water, ordnance gelatin, and ordnance gelatin covered with natural chamois as a skin simulant was the subject of this investigation. Energy-dependent expansion of the tested hollow-point pellets was observed after being shot into all investigated target media. While some hollow-point pellets require a minimum kinetic energy of approximately 10 J for sufficient expansion, there are also hollow-point pellets which expand at kinetic energy levels of less than 5 J. The ratio of expansion (RE, calculated by the cross-sectional area (A) after impact divided by the cross-sectional area (A

Indexed as

AirFirearmsForensic BallisticsHumansKineticsModels, StatisticalAir gun pelletBallisticsDeformation bulletHollow-point bulletKinetic energyTemporary cavity

Identifiers

PMID28078445
OpenAlexW2578757623

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.