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Reloading The .303 British Rifle


(Note: These are near maximum loads, you should use 10% less to start.)
(See note on Powders below or read all about various Powders.)
Bullet is .311" diameter. Some people use the standard 30 caliber bullets ( .308" dia) and it will work, but not well. I don't recommend it. Much better accuracy and performance can be obtained by using the .311" jacketed or .312" lead that the rifle is designed to shoot. This is the same diameter as the 7.62x 39 Russian. Due to different barrel lengths, type of bullet, seating depth, primer type and other factors, you may not get near the FPS charted. It is just a guide and the reason you should start under these charges and work up.

MAXIMUM LOADS  - -  DO NOT EXCEED -- Start 10% less
----------------------------------------
123-125 grain Speer (125 Spitzer SP & 123 FMJ)
    IMR 4895     45.0 gr.   2,840 FPS
    H380         48.0 gr.   2,700
    Reloader 15  46.0 gr.   2,788
    AA2230       43.0 gr.   2,790
-----------------------------------------
150 grain JSP 
    IMR 4895     42.0 gr.   2,594 FPS
    H4895        42.0 gr.   2,479
    H450         50.0 gr.   2,306
    H414         48.0 gr.   2,482
    H380         44.0 gr.   2,443
    A2230        43.0 gr.   2,704
    A2495        46.0 gr.   2,727
    A2700        48.0 gr.   2,561
    IMR 4064     43.0 gr.   2,554
-----------------------------------------
180 grain JSP 
    IMR 4895     40.0 gr.   2,320 FPS
    H4895        40.0 gr.   2,295
    H450         50.0 gr.   2,281
    H414         46.0 gr.   2,304
    H380         42.0 gr.   2,276
    A2015        38.0 gr.   2,420
    A2495        44.0 gr.   2,478
    A3100        46.0 gr.   2,024
    IMR 4064     40.0 gr.   2,283
-----------------------------------------
180 grain LEAD
    A2230        39.0 gr.   2,459
    A2495        44.0 gr.   2,529
    A3100        46.0 gr.   2,063
-----------------------------------------
Discussion: If full power loads are used in the .303, the cases will not last very long. With reduced loads, they will last a fairly long time.

The .303 was originally adopted in the late 1880's and lasted untill it was replaced in 1957 by the 7.62 mm Nato round. It started out propelled by black powder and later replaced with smokeless. It had similar speeds as the 30-40 Krag.

*
#2400, Reloader 7, 11, 12, and 15 are products of Alliant (formerly Hercules) Powders.
H380, H414, H450, H4350 and H4895 are products of Hodgdon Powders.
IMR 3031 and IMR 4895 are products of IMR (formerly DuPont) Powder Company.
A2230, A2495, A2700, A3100, A2015 and A2460 are products of Accurate Arms Company
WMR, WSF, WSL, 760, 748, 680, 231 and 540 are products of Winchester, Components Div.

References: Accurate Arms Co. 1996 Reloading booklet - - Alliant Powder Co. Reloaders' Guide (1995) - - Hodgdon's Basic Reloaders Manual (1996) - - Speer Reloading Manual, #12 - - Winchester Reloading Components Manual, 14th edition - - Lyman Piston & Revolver Reloading Handbook, 2nd edition. - - VihtaVuori Oy Company,reloading booklet (1995) - - Numerous magazine articles on reloading special calibers and personal loads where noted.

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This page created 7/29/96 by M.D. Smith and last modified on August 1, 1997 ©