![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
|
California Precision Rifle Club California Precision Rifle Club Forum |
![]() |
|
Thread Tools | Display Modes |
#4
|
||||
|
||||
![]() Yea, but what datum? Elevation above "sea level" is a funny thing. I can show you references to a point that says it has three or four different elevations above "sea level." Although the elevations vary by more than 10 feet, all of them are correct! It really depends on what datum you want to go with. I know, +/- 10' is probably close enough for you. |
#6
|
|||
|
|||
![]()
Not quite the same question, but do any of you notice strange things with your POI at Angeles due to the incline? Whenever I've zeroed something on a level range, if I take it to Angeles my shots end up a bit high, and I thought that might be due to the uphill shooting.
Thoughts? -Nic |
#12
|
||||
|
||||
![]() Quote:
Also OP... why not just use density altitude, assuming you are calculating dope?
__________________
ExtremeX Last edited by ExtremeX; 05-08-2017 at 11:02 PM.. |
#13
|
|||
|
|||
![]() Quote:
If you are shooting uphill or downhill the shots should be high Edited to add: At Angeles, the uphill angle is about 6° so for instance my 6 creed POI would change by .4 inches at 600 yards. (from 62.2" drop at 0° to 61.8" at 6°). For a 308 at 600yd, the difference is .4" (96.9" drop at 0° to 96.5" at 6°, and for giggles 80.9" drop at 30°). Calcs per applied ballistics.
__________________
So Cal Precision Rifle Team, NRA Life, WEGC Precision Bolt Rifle Director, NRL Member, Bolt Action Rifle Groupie, NRA Pistol Distinguished Expert Last edited by thegiff; 05-29-2017 at 1:23 PM.. |
#14
|
||||
|
||||
![]()
It's actually the opposite. If you're shooting uphill/downhill, your shots will impact high. You dial in less elevation.
|
#15
|
|||
|
|||
![]()
Oops, brain working backward when I wrote that...
__________________
So Cal Precision Rifle Team, NRA Life, WEGC Precision Bolt Rifle Director, NRL Member, Bolt Action Rifle Groupie, NRA Pistol Distinguished Expert |
![]() |
Thread Tools | |
Display Modes | |
|
|
![]() |
![]() |
![]() |