IMPROVED CARTRIDGES FOR GALLERY AND SHORT RANGE RIFLE PRACTICE AND METHOD OF MANUFACTURING SAME
Year: 1884

page_text: We JOHN HENRIQUE DUNN of the Towers Oakfield Crescent Haverstock Hill
in the County of Middlesex and JOHN RONALD SHEARER of 10 Basinghall Street
in the City of London Chartered Accountant do hereby declare the nature of
our Invention for IMPROVED CARTRIDGES FOR GALLERY AND SHORT RANGE RIFLE
PRACTICE AND METHOD OF MANUFACTURING SAME, and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement:-
The object of our said Invention is to give greater facilities for accurate rifle
practice at short ranges say from 10 to 50 yards more or less with comparatively
no recoil and with little or no report and is particularly applicable for gallery
practice. Our said Invention consists in using solid metal cases of brass, steel, or
other suitable metal, the exterior of which shall be exactly similar in shape and size
to the ordinary Martini-Henry, Snider, Gras, Remington, or any other military or
sporting rifle cartridges whatever. In the base of all such cartridges is formed a
cavity or dome large enough to admit Eley B 197 gauge waterproof primers
and anvils. For these cartridges we may use a larger or smaller cavity or dome
to admit a larger or smaller cap. In the bullet end of these solid cartridge cases,
we bore, cut, or otherwise make a space or passage which may be conical, tapering
or equal in area throughout to the dome, or cavity in the base of the cartridge and
communicating therewith by a pin hole, and the commencement of this space or
passage we consider should be 250 inch in diameter, or thereabout or equivalent
thereto. For about one inch more or less from the mouth or bullet end of the
cartridge case the aperture of the diameter 250 more or less is widened sufficiently
to admit a bullet and wads of the size required for any particular rifle. We may
also use Eley Bro solid drawn metal cases or any other suitable case.
These we
fill to within one inch more or less from the bullet end with lead solder or other
suitable material beginning with an aperture of 250 inch more or less in diameter
leaving a conical tapering or equal space from end to end to the top of the dome
in the base of the cartridge and communicating therewith by a pin hole. These
cartridge cases are capped and re-capped by a simple contrivance and are loaded
with 10 grains more or less of black gunpowder, or by preference 8 grains (by

page_text: measure) more or less of E. C. powder this powder being cleanly accurate smokeless
and almost noiseless, is the best adapted for gallery purposes.
We ram a disc or wad of cardboard or other suitable material on the top of the
powder and next place a wad of wax or grease and then a bullet, if for the Martini
or Snider rifles as described in the application No 1973. A.D. 1883. For all rifles
the bullets used are large enough to take the grooving of the rifles. Cartridge
cases so manufactured, can be used over and over again.
The advantages derivable from the use of our Invention, are practically absence
of recoil in firing, very little noise, scarcely any smoke, greater accuracy in firing,
very great economy; and firing can be carried on in the barracks, at head
quarters or other suitable place.
measure) more or less of E. C. powder this powder being cleanly accurate smokeless
and almost noiseless, is the best adapted for gallery purposes.
We ram a disc or wad of cardboard or other suitable material on the top of the
powder and next place a wad of wax or grease and then a bullet, if for the Martini
or Snider rifles as described in the application No 1973. A.D. 1883. For all rifles
the bullets used are large enough to take the grooving of the rifles. Cartridge
cases so manufactured, can be used over and over again.
The advantages derivable from the use of our Invention, are practically absence
of recoil in firing, very little noise, scarcely any smoke, greater accuracy in firing,
very great economy; and firing can be carried on in the barracks, at head
quarters or other suitable place.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 Shows sectional view of one form of case with conical or tapering cavity.
Fig. 2 Modified form with equal area of cavity.
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