I researched this for someone looking for sight offsets & can't find the thread, so as it's kind of a handy thing to know anyway I'm posting this here.
The BC & SD numbers for the Mk VII ball bullet are for the type with the nose filler, not the ones with a solid lead core. Unfortunately I don't have a solid lead bullet handy to measure which you have to do to work out the Ballistic Coefficient. I don't see the difference as being huge, so you can probably use the data for either. If you can't find out which type bullet you have measure the length of the bullet itself. The slightly shorter ones are solid, the longer have the tip filler.
The 300 & 600 Yd zeroes are for use with the "L" flip sight.
.303 British trajectory notes. |
(#4 MkII Lee Enfield with factory iron sights at 1.3" Above bore.) |
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174Gr Mk VII ball. (filler type bullet) |
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MV 2450 FPS |
BC = 0.377 (calculated) |
SD = 0.257 (calculated) |
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300 yd zero |
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DISTANCE: |
0 |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
1000 |
PATH: |
-1.25 |
+6.6 |
+5.75 |
0.0 |
-17.9 |
-48.7 |
-95.2 |
-161.7 |
-250.6 |
-369.9 |
-512.2 |
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600 yd zero |
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DISTANCE: |
0 |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
1000 |
PATH: |
-1.25 |
+22.54 |
+39.34 |
+47.64 |
+45.55 |
+30.7 |
0.0 |
-50.1 |
-123.7 |
-225.2 |
-358.6 |