Rockrivr1
NES Member
I don't think so or Hornady's Ballistic Calculator is completely screwed up. I just got back from the range trying to get ready for the Grandby Long Range match next weekend. So my 100 and 200 yard zero's are good and match up with the Ballistic Calculator. Going from the calculator I need to come up 1.1 MRADs from my 100 yard zero for 300 yards. I do that and I'm hitting 4"-5" high. I back down to .8 MRADs over 100 yard zero and I'm dead on. According to the calculator though .8 is what's needed for 250 yards. Hummmmmm, I'm starting to think that the Harvard 300 yard range isn't exactly 300 yards. Either that or I'm going to have a miserable time next weekend......
Adding some additional information. I'm shooting Hornady 6.5 CM 140 gr ELD Match rounds in a Savage BA Stealth rifle w/ a 24" barrel. From Hornady's web page these rounds are generating a velocity of 2710 in a 24" barrel. The Ballistic Coefficient using G1 is .646 and my center bore to center scope is 2.1". When I add that all together in Horady's calculator I get the following.
I'm sure it's me, but not sure how.
Adding some additional information. I'm shooting Hornady 6.5 CM 140 gr ELD Match rounds in a Savage BA Stealth rifle w/ a 24" barrel. From Hornady's web page these rounds are generating a velocity of 2710 in a 24" barrel. The Ballistic Coefficient using G1 is .646 and my center bore to center scope is 2.1". When I add that all together in Horady's calculator I get the following.
Range | Velocity | Energy | Trajectory | Come Up (MOA) | Come Up (MILS) | Wind Drift | Wind Drift (MOA) | Wind Drift (MILS) |
0 | 2710 | 2283.0 | -2.1 | 0.0 | 0.0 | 0 | 0 | 0 |
50 | 2637 | 2161.0 | -0.4 | 0.8 | 0.2 | 0 | 0 | 0 |
100 | 2565 | 2045.0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 |
150 | 2494 | 1933.0 | -0.9 | 0.6 | 0.2 | 0 | 0 | 0 |
200 | 2424 | 1827.0 | -3.2 | 1.5 | 0.4 | 0 | 0 | 0 |
250 | 2356 | 1725.0 | -7.0 | 2.7 | 0.8 | 0 | 0 | 0 |
300 | 2288 | 1627.0 | -12.3 | 3.9 | 1.1 | 0 | 0 | 0 |
350 | 2221 | 1534.0 | -19.3 | 5.3 | 1.5 | 0 | 0 | 0 |
400 | 2156 | 1445.0 | -28.1 | 6.7 | 2.0 | 0 | 0 | 0 |
450 | 2092 | 1360.0 | -38.7 | 8.2 | 2.4 | 0 | 0 | 0 |
500 | 2029 | 1279.0 | -51.4 | 9.8 | 2.9 | 0 | 0 | 0 |
550 | 1966 | 1202.0 | -66.1 | 11.5 | 3.3 | 0 | 0 | 0 |
600 | 1906 | 1129.0 | -83.1 | 13.2 | 3.8 | 0 | 0 | 0 |
650 | 1846 | 1059.0 | -102.5 | 15.1 | 4.4 | 0 | 0 | 0 |
700 | 1788 | 993.0 | -124.4 | 17.0 | 4.9 | 0 | 0 | 0 |
750 | 1731 | 931.0 | -149.1 | 19.0 | 5.5 | 0 | 0 | 0 |
800 | 1675 | 872.0 | -176.6 | 21.1 | 6.1 | 0 | 0 | 0 |
850 | 1621 | 817.0 | -207.3 | 23.3 | 6.8 | 0 | 0 | 0 |
900 | 1569 | 765.0 | -241.2 | 25.6 | 7.4 | 0 | 0 | 0 |
950 | 1518 | 716.0 | -278.7 | 28.0 | 8.1 | 0 | 0 | 0 |
1000 | 1469 | 670.0 | -320.0 | 30.6 | 8.9 | 0 | 0 | 0 |
I'm sure it's me, but not sure how.
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