7.7x56mm R (.303 British)
The inclusion of the .303 British in my list of sniping calibers is based solely on its
historical significance. As far as I can tell, there is no current sniper rifles chambered
in the legendary .303. The reason is simply because the .308 (7.62x51 NATO) out performs the
.303 in every aspect and the odd .311 diameter bullet just does not have a lot of support
and as such does not have many good choices available. The .303 did see extensive action
in WWI and WWII as a sniping round,
especially in the No 4 Mk1 (T). This rifle/ammo combination was a very good performer,
and served the British troops until well after WWII when finally the L42A1 was adopted (The L42A1
was a modified No4 Mk1 (T) with a shorter fore-end, and chambered for the 7.62x51mm NATO). The
limited availability of modern rifles has made the options for ammo shrink as well. PMC used to load
a match load for the 303 but they are no longer in the picture either. There are still a few good
components available, specifically the 174gr Sierra Match King bullet, so reloaing some
match grade ammo is an option. The size of the bullet is a bit odd (.311) so that makes availabiilty
of different bullets fairly small as well. I have talked to HSM about potentially loading some match
grade ammo using that Sierra bullet and they would be willing if there was interest.
Recommendations: This round is used primarily in the 'Historic' sniper rifles, but
in reality, it would serve just fine in both a limited military role and in a Law Enforcement
situation. It doesn't penetrate as much as the .308 but still yields good energy. The only
problem is finding rifles and ammo in this caliber.
Military Applications
Note: The ammo I choose is the Hornady Custom Classic 303 British round using a FMJBT in 174 gr. .
Hornady Custom Classic, 174gr FMJBT - 2475fps
Bullet Drop (Inches)
|
100y
92m |
200y
183m |
300y
275m |
400y
366m |
500y
458m |
600y
458m |
700y
458m |
800y
458m |
900y
458m |
1000y
458m |
|
+19.7 |
+34.2 |
+41.0 |
+38.8 |
25.8 |
Zero |
-40.9 |
-99.8 |
-179.9 |
-284.7 |
Energy (Muzzle - 2366 Ft.-Lbs.)
|
2035 |
1740 |
1480 |
1253 |
1056 |
889 |
748 |
634 |
544 |
476 |
Wind Drift (inches) - 10mph Crosswind
|
0.8 |
3.4 |
8.0 |
14.8 |
24.0 |
36.1 |
51.1 |
69.4 |
90.9 |
115.7 |
Law Enforcement Applications
Note: Because pretty much all of the other loads for the .303 British are designed
for hunting, I have decided to stick with the same Hornady custom classic load as I specified
in the above military area. If a match grade load becomes available with the 174gr Sierra
Match King, it would probably be a good idea to look at it here.
Hornady Custom Classic, 174gr FMJBT - 2475fps
Bullet Drop (Inches)
|
50y
46m |
100y
92m |
200y
183m |
300y
275m |
|
0.0 |
Zero |
-5.1 |
-18.0 |
Energy (Muzzle - 2366 Ft.-Lbs.)
Wind drift (inches) - 10 MPH crosswind
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