Improvements in Rifle Bullets.
Year: 1893

page_text: Date of Application, 19th Apr., 1893
Complete Specification Left. 27th Apr. 1893-Accepted. 8th July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Rifle Bullets.
I WILLIAM JACKMAN JEFFERY of 60 Queen Victoria Street, in the City of
London, Gun and Rifle Maker do hereby declare the nature of this invention to be-
as follows:-
According to this invention, or improvement I construct the rifle bullet with.
four (more or less) longitudinal slots cut through the steel or metal casing, the
said slots, being about two thirds the length of the bullet commencing at about
one sixth the total length from the base & extending to within the same length of
the point or front end of the bullet, the depth of the said slots may vary
according to the degree of sensitiveness that the bullet is required to possess. In
ordinary lead bullets I cut the slots in the same manner as in the cased bullet.
The object of this invention is the construction of a bullet which shall easily
expand on striking thus causing a larger wound, than that made by solid bullets.
or cased bullets.
Dated this 18th day or April 1895.
W. J. JEFFERY.
COMPLETE SPECIFICATION.
Improvements in Rifle Bullets.
I WILLIAM JACKMAN JEFFERY of 60 Queen Victoria Street in the City of
London, Gun and Rifle Maker do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
The improvement consists of the cutting of four slots which extend longitudinally
along the bullet, these slots being cut through the hard metal covering of the
bullet thus admitting of the expansion of the bullet on striking flesh or bone,.
so as to cause a larger & more deadly wound than that caused by the ordinary
hard metal covered bullet.
If it is desired to vary the degree of expansion I make the bullet with either
a lesser or greater number of slots than four, and vary the depth of the said slots,.
cutting into the lead core of the bullet if I desire to make the bullet expand
with ease on striking a small animal.
DRAWINGS. SHEET I.
The drawings accompanying this Specification represent in Figure 1. the full'
length view of the bullet with the slot extending from a. to b. Figure 2..
represents a cross section of the bullet at the place marked c on Figure 1. The
four slots are shown in Figure 2 extending through the hard metal casing but not
penetrating the lead core. In Figure 3. which shows a section of a bullet at the
same place as shown on Figure 2. the slots are cut deeper, penetrating into the.
lead core of the bullet.
Having now particularly described & ascertained the nature of my said inven--
tion & in what manner the same is to be performed I declare that what I
claim is
1st. An improvement in the construction or manufacture of cased rifle bullets.
which admits of the expansion of the bullet when striking the flesh or bone of
the object fired at so as to cause a larger & more deadly wound.

page_text: 2nd. That by varying the number of slots cut through the casing of the bullet,
and the width and depth of the said slots the bullets can be made to expand with
more or less ease, thus rendering them equally effective on large & tough skinned
animals, as on deer or smaller game.
Dated i
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