Vortex Strike Eagle MOA at different zoom levels

Vortex Strike Eagle optics has second focal plane BDC reticle. Documentation provides MOA for reticle crosshair at maximum 6x magnification.

I was wondering how would the values change at different zoom levels and would this calculation work – MoaAtXZoom = MOAat6x*6/Xzoom. Below you can see calculated values in a table:

1	2	3	4	5	6
0	0	0	0	0	0
14,4	7,2	4,8	3,6	2,88	2,4
35,4	17,7	11,8	8,85	7,08	5,9
57	28,5	19	14,25	11,4	9,5
87,6	43,8	29,2	21,9	17,52	14,6

Strike Eagle BDC ReticleTested calculations at 2x zoom. Values are highly highly approximate. At ~2-3 meters had to use the lowest crosshair to hit center. At somewhere 7-8 meters were using the third crosshair. At ~15-18 meters second crosshair. Over 20 meters were using first crosshair ( rifle zeroed at ~50 meters ).

Vortex has nice ballistics calculator online. So I used it with similar 223 55gr load to calculate bullet drop ( rise ) with 1-meter increment.

Range	Drop 0°	Wind	Velocity	Time of Flight	Energy
Meters	MOA	MOA	Feet/Second	Seconds	Foot lbs
1	135.29	0.00	3325	0.001	1349
2	65.88	0.00	3320	0.002	1345
3	42.75	0.00	3315	0.003	1341
4	31.20	0.00	3310	0.004	1337
5	24.27	0.00	3305	0.005	1332
6	19.65	0.00	3300	0.005	1328
7	16.36	0.00	3295	0.006	1324
8	13.89	0.00	3290	0.007	1320
9	11.98	0.00	3285	0.008	1316
10	10.45	0.00	3280	0.009	1312
11	9.23	0.00	3269	0.011	1304
12	8.19	0.00	3265	0.012	1300
13	7.31	0.00	3260	0.013	1296
14	6.56	0.00	3255	0.014	1292
15	5.91	0.00	3250	0.015	1288
16	5.35	0.00	3245	0.016	1284
17	4.85	0.00	3240	0.016	1280
18	4.41	0.00	3235	0.017	1277
19	4.01	0.00	3230	0.018	1273
20	3.66	0.00	3225	0.019	1269
21	3.34	0.00	3220	0.020	1265
22	3.09	0.00	3210	0.022	1257
23	2.83	0.00	3205	0.023	1253
24	2.59	0.00	3200	0.024	1249
25	2.37	0.00	3195	0.025	1246

Looking at the table You could see that ~3 meters its ~42 moa drop and at Strike Eagle at 2x zoom it is somewhere lowest crosshair.

At 7-8 meters it is 13-16 moa drop at it is somewhere near the third crosshair at 2x zoom.

At 15-18 meters it is 5.9-4.4 moa drop and at 2x zoom it is somewhere between first and second crosshair.

As I said, values that I got in the test are highly highly approximate and inaccurate but it seems they fall in expected ranges.

So for 2x zoom ( when it is zeroed at 6x 50 meters, using 223 55gr ) it would be something like that:

 

Same table from the ballistic calculator with the drop in centimeters:

Range	Drop 0°	Wind	Velocity	Time of Flight	Energy
Meters	Centimeters	MOA	Feet/Second	Seconds	Foot lbs
1	3.94	0.00	3325	0.001	1349
2	3.83	0.00	3320	0.002	1345
3	3.73	0.00	3315	0.003	1341
4	3.63	0.00	3310	0.004	1337
5	3.53	0.00	3305	0.005	1332
6	3.43	0.00	3300	0.005	1328
7	3.33	0.00	3295	0.006	1324
8	3.23	0.00	3290	0.007	1320
9	3.14	0.00	3285	0.008	1316
10	3.04	0.00	3280	0.009	1312
11	2.95	0.00	3269	0.011	1304
12	2.86	0.00	3265	0.012	1300
13	2.76	0.00	3260	0.013	1296
14	2.67	0.00	3255	0.014	1292
15	2.58	0.00	3250	0.015	1288
16	2.49	0.00	3245	0.016	1284
17	2.40	0.00	3240	0.016	1280
18	2.31	0.00	3235	0.017	1277
19	2.22	0.00	3230	0.018	1273
20	2.13	0.00	3225	0.019	1269
21	2.04	0.00	3220	0.020	1265
22	1.98	0.00	3210	0.022	1257
23	1.89	0.00	3205	0.023	1253
24	1.81	0.00	3200	0.024	1249
25	1.72	0.00	3195	0.025	1246