.303/25

.303/25

Infobox Firearm Cartridge
name= .303/.25
origin=flagcountry|Australia
type=Rifle
designer=
design_date= 1940s
parent=.303 British
case_type=Rimmed, bottleneck
bullet= 0.257
neck= 0.290
shoulder= 0.412
base= 0.460
rim_dia= 0.540
rim_thick=.064
case_length= 2.185
length= 2.85
case_capacity=50.86
rifling=1-12 inches
primer=Large rifle [Donnelly, John J., Handloaders Manual of Cartridge Conversions, p223]
is_SI_ballistics=
bw1=87
btype1=SP
vel1=3010
en1=1750
bw2=100
btype2=HPBT
vel2=2800
en2=1740
bw3=117
btype3=SP
vel3=2800
en3=1740
test_barrel_length=24
balsrc= Reload Bench [Reload Bench [http://www.reloadbench.com/cartridges/w25303.html] ]

The .303/25, sometimes known as the .25/303 is a wildcat centrefire rifle cartridge, based on the .303 British, necked down to fire a .257 projectile, originating in Australia in the 1940s as a cartridge for sporterised rifles, particularly on the Lee Enfield action, similar versions also appeared in Canada around the same time [Barnes, Frank C., Cartridges of the World, 7th Edition, p173] .

The .303/25 was very popular for a number of reasons, one being that the .25 caliber was better suited to small game than the .303, the rifles were cheap and plentiful and in New South Wales ownership of military cartridges was severely restricted. Several versions existed but most were simply necked down and remained full length. Although Lee Enfields were the most common, conversion of other rifles mostly suited to rimmed cartridges such as P14 Enfield, Martini Enfield, 1885 and 1895 Winchesters were often seen, as well as 98 and 96 Mausers [Barnes, Frank C., Cartridges of the World, 10th Edition, p473] .

Loaded ammunition and brass was produced by the Super Cartridge Company, Riverbrand, ICI and Sportco, some using new Boxer primed cases, others using military Berdan primed cases. Cases can be formed simply by necking down .303 British brass available from Remington, Federal, Winchester, Sellier & Bellot and others. Reloading dies are made by most larger manufacturers, like RCBS, Lyman, CH [ [http://www.ch4d.com/ CH] ] and Simplex [ [http://www.jansa.com.au/simplex3.php Jansa Arms Co - Australia ] ] .

ee also

*.303/22
*.303 British
*Lee Enfield
*List of rifle cartridges
*Sporterising

References


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