04-26-2019, 01:02 PM
newb - I can't speak to your experience, but let me share mine.
Last weekend I took my 22" Bull Barrelled BHW out for a romp. I sent some rounds down range, using the ballistic computer's wind and elevation calls for dialup and wind holds. I was meticulous about the data I entered, regarding measured wind, temperature and elevation. MV was 2570, from the most recent outing's chronograph readings. I entered the .506 G1 BC for my 123 ELD's, as indicated by the box, the Hornady website, and the the ballistic calculator's internal library.
I checked zero @ 100, and dialed up in the calculated elevations at various distances and was able to put first round hits on almost every target. Other than changes to my wind holds, I did not deviate from the drop chart generated by my app.
These are some the hits on steel out to 1000 yards.
[ATTACH=CONFIG]14179[/ATTACH] [ATTACH=CONFIG]14180[/ATTACH] [ATTACH=CONFIG]14181[/ATTACH]
My come ups were 2.0 mils @ 400 yards, 6.6 mils @ 800 yards, and 9.5 mils @ 1000 yards. Wind was 15 mph L-R, gusting to 25. This particular range is @ 6600 ft ASL.
A quick check for a 500 yard drop in MOA shows I would have used a 10.4 MOA come up, somewhat more than your calculated hold of 9.7, but reasonably close.
What I'm trying to illustrate is that IF your data is good, a quality calculator can put you on target with a fair measure of accuracy. Mind that fact that it is a model of a real world situation, and the deviations from the real world come from primarily from data entry errors.
So, if you are getting a 15 moa drop at 500 yards, and assuming that your 2510 MV is accurate, I would have to come to one of two possible conclusions: 1) we are shooting two different bullets, or 2) we are measuring our drops differently (scope error).
While #1 is possible, it is unlikely that the boxes are mismarked. The would leave me suspecting an issue with the scope. I have checked my scope, using a technique described by Bryan Litz, called the Tall Target Test. This, combined with the well known Box Test, has given me confidence in the scope mounted on this particular rifle.
As I said, I can't speak to your situation, directly, newb, but my experience tends to align with the stated BC of the round in question. So there you have it - we have two disjointed experiences.
Last weekend I took my 22" Bull Barrelled BHW out for a romp. I sent some rounds down range, using the ballistic computer's wind and elevation calls for dialup and wind holds. I was meticulous about the data I entered, regarding measured wind, temperature and elevation. MV was 2570, from the most recent outing's chronograph readings. I entered the .506 G1 BC for my 123 ELD's, as indicated by the box, the Hornady website, and the the ballistic calculator's internal library.
I checked zero @ 100, and dialed up in the calculated elevations at various distances and was able to put first round hits on almost every target. Other than changes to my wind holds, I did not deviate from the drop chart generated by my app.
These are some the hits on steel out to 1000 yards.
[ATTACH=CONFIG]14179[/ATTACH] [ATTACH=CONFIG]14180[/ATTACH] [ATTACH=CONFIG]14181[/ATTACH]
My come ups were 2.0 mils @ 400 yards, 6.6 mils @ 800 yards, and 9.5 mils @ 1000 yards. Wind was 15 mph L-R, gusting to 25. This particular range is @ 6600 ft ASL.
A quick check for a 500 yard drop in MOA shows I would have used a 10.4 MOA come up, somewhat more than your calculated hold of 9.7, but reasonably close.
What I'm trying to illustrate is that IF your data is good, a quality calculator can put you on target with a fair measure of accuracy. Mind that fact that it is a model of a real world situation, and the deviations from the real world come from primarily from data entry errors.
So, if you are getting a 15 moa drop at 500 yards, and assuming that your 2510 MV is accurate, I would have to come to one of two possible conclusions: 1) we are shooting two different bullets, or 2) we are measuring our drops differently (scope error).
While #1 is possible, it is unlikely that the boxes are mismarked. The would leave me suspecting an issue with the scope. I have checked my scope, using a technique described by Bryan Litz, called the Tall Target Test. This, combined with the well known Box Test, has given me confidence in the scope mounted on this particular rifle.
As I said, I can't speak to your situation, directly, newb, but my experience tends to align with the stated BC of the round in question. So there you have it - we have two disjointed experiences.
If it's true that we are here to help others, then what exactly are the others here for?