Nagant M1895
Fabrique d'armes Émile et Léon NagantSmokeless revolution
Also known as Nagant Revolver
Image credit
- Title
- File:Nagant M1895 DoubleAction noBG.jpg
- Author
- https://commons.wikimedia.org/wiki/User:Atirador(attribution required)
- Licence
- CC BY-SA 3.0
- Source
- https://commons.wikimedia.org/wiki/File:Nagant_M1895_DoubleAction_noBG.jpg
How Muzzle energy is calculated
E = ½ · m · v²
Inputs
- m7 g108.0 grestimatedWikipedia infobox, uncited on Wikipedia itself; the m/s reading reproduces the article's own published energy to 0.2% via ½mv²
- v305 m/s1,001 fpsestimated
No input on this calculation carries a clickable source yet.
How Muzzle velocity is calculated
measured at this barrel length
Inputs
- v305 m/s1,001 fpsestimatedWikipedia infobox, uncited on Wikipedia itself; ½mv² reproduces the published 325 J energy figure to 0.2%, confirming the m/s reading
No input on this calculation carries a clickable source yet.
How Loaded mass is calculated
m_loaded = m_empty + m_magazine + n · m_cartridge
Not calculated: m_magazine has no sourced figure yet. Nothing is substituted for a missing input.
Assumptions
- One magazine, filled to the stated capacity. Spare magazines, optics, slings and lights are the owner’s, not the arm’s.
2 of 4 inputs link to their source.
How Free recoil is calculated
E_recoil = ½ · m_firearm · v_recoil²
Inputs
- m_firearm0.82 kg1.808 lbestimatedsourceunloaded, from the infobox; no inline citation is given there.
- v_recoil2.604 m/s8.542 fpsestimated
Assumptions
- Propellant gas momentum is excluded: ARMAG does not record charge weights. This is therefore a lower bound on the real free recoil, consistent between entries but smaller than a figure that includes the gas term.
- Free recoil: the arm is unrestrained. Stock design, muzzle devices, stance and shooter mass are not modelled, because none of them is a property of the arm.
1 of 2 inputs link to their source.
How Capacity is calculated
as published for the primary chambering
Inputs
- capacity7estimatedsource7-round cylinder, from the infobox, uncited there.
1 of 1 inputs link to their source.
Derived figures
Computed from the sourced values above. Open ƒ on any figure for the formula, its inputs, and the assumptions it makes.
How Momentum is calculated
p = m · v
Inputs
- m7 g108.0 grestimatedWikipedia infobox, uncited on Wikipedia itself; the m/s reading reproduces the article's own published energy to 0.2% via ½mv²
- v305 m/s1,001 fpsestimated
No input on this calculation carries a clickable source yet.
How Sectional density is calculated
SD = mass(gr) / (7000 · diameter(in)²)
Inputs
- mass7 g108.0 grestimatedWikipedia infobox, uncited on Wikipedia itself; the m/s reading reproduces the article's own published energy to 0.2% via ½mv²
- diameter7.82 mm0.3079 inverifiedsourceC.I.P. TDCC table 4 datasheet, field G1
Assumptions
- Reported in the conventional lb/in² so it is directly comparable with published figures.
1 of 2 inputs link to their source.
How Power factor is calculated
PF = mass(gr) · velocity(fps) / 1000
Inputs
- mass7 g108.0 grestimatedWikipedia infobox, uncited on Wikipedia itself; the m/s reading reproduces the article's own published energy to 0.2% via ½mv²
- velocity305 m/s1,001 fpsestimated
Assumptions
- A competition classification defined by the IPSC and USPSA rulebooks, stated in their units. It describes a scoring category, not an effect.
No input on this calculation carries a clickable source yet.
How Magazine dump is calculated
t = (n − 1) / (rpm / 60)
Not calculated: rpm has no sourced figure yet. Nothing is substituted for a missing input.
Assumptions
- Cyclic rate held for the whole magazine, no stoppages, trigger held down. A theoretical figure for comparing mechanisms, not a measured one.
1 of 2 inputs link to their source.
How Sight error at 1 mm is calculated
θ = atan(misalignment / sight radius)
Not calculated: sight radius has no sourced figure yet. Nothing is substituted for a missing input.
Assumptions
- Shows what a stated aiming error costs. The misalignment is the reader’s figure; the site does not claim how well anyone aims.
No input on this calculation carries a clickable source yet.
Specifications
Every row here is generated from the schema, so a figure recorded on this entry cannot be missing from the table, and the same rows, read the same way, are what the comparison shows.
Identity
- Type
- Revolver
- Action
- Revolver action
- Fire modes
- Single shot
- Operating system
- Manually operated
- Feed
- Roles
- Designed in
- Belgium
- Produced in
- Introduced
- 1895
- Production
- not recorded
Dimensions and mass
- Mass, empty
unloaded, from the infobox; no inline citation is given there.
- Magazine, empty
- not recorded
- Length
from the infobox, uncited there.
- Length, folded
- not recorded
- Width
- not recorded
- Height
- not recorded
- Barrel length
from the infobox, uncited there.
Sights and rifling
- Sight radius
- not recorded
- Sight height over bore
- not recorded
- Rifling twist
- not recorded
- Twist direction
- not recorded
- Grooves
- not recorded
- Sight graduation
- not recorded
Operation
- Cyclic rate
- not recorded
- Trigger pull
- not recorded
- Effective range
cited by the infobox to a Chuckhawks.com page, not independently read for this survey.
- Units produced
- not recorded
- Launch price
- not recorded
Chamberings
- 7.62×38mmRprimary7 rounds
Scale
A to-scale outline against family siblings. The dimensions are sourced; the shape is a representative outline for the type, and says so.
- Nagant M1895235 mm9.252 inheight not recorded
Representative outline: the dimensions are sourced, the shape is not. Overall length, and barrel length where recorded, are drawn from this entry's own figures; the profile is a generic one for the firearm type and says nothing about this arm's actual contours. Nagant M1895 records no height, so its outline is drawn at the type's proportion. That height is part of the shape, not a measurement.
Gallery
Image credit
- Title
- File:Nagant Revolver cutaway.jpg
- Author
- Wad53(attribution required)
- Licence
- CC BY-SA 4.0
- Source
- https://commons.wikimedia.org/wiki/File:Nagant_Revolver_cutaway.jpg
Detail
Every ordinary revolver has a small gap between the front of the cylinder and the back of the barrel, needed so the cylinder can rotate freely, and that gap vents a jet of hot propellant gas sideways with every shot, close enough to a shooter’s supporting hand to be a known hazard of the type. Léon Nagant’s M1895 closes that gap mechanically: cocking the hammer, either by hand or through the double-action trigger pull, pushes the entire cylinder forward so its front face seats against a short conical extension at the rear of the barrel, sealing the joint before the round fires.
That seal only works with a cartridge built for it. Unlike an ordinary revolver round, the Nagant’s 7.62×38mmR case has its bullet seated entirely inside the case with the mouth of the brass rolled in to grip it, rather than the bullet’s tip protruding as it does from almost every other cartridge. The cartridge mouth is what the barrel’s conical extension presses against to complete the seal, and the arrangement gains the round some additional velocity from the sealed cylinder gap on top of solving the gas-jet problem. The mechanical cost is a startlingly heavy trigger: about 12 lbs of pull to cock the hammer by hand for single-action fire, and roughly 20 lbs through the full double-action stroke, since that same pull has to push the cylinder forward against the seal as well as rotate it and cock the hammer.
Belgian-designed but built in far greater numbers under Imperial Russian and later Soviet licence at the Tula and Izhevsk arsenals, the M1895 stayed in Soviet service alongside the Tokarev pistol for decades and saw use from the Russo-Japanese War through the Vietnam War in the hands of various forces that inherited Soviet-bloc stocks.
This entry’s weight, length, barrel length and effective range all trace to the Wikipedia infobox, mostly
without an inline citation, and are recorded as estimated; the effective-range figure is cited there to a
page that could not be independently read for this entry. No twist rate is published.
References
This entry's own bibliography. Every citation key on this page resolves into this list.
- Nagant M1895 · Wikipedia · 1372133989 · read 2026-09-09 · CC BY-SA 4.0
Last verified 2026-09-09 · review status: agent-populated