Does anyone have the standard comeups for M1A / 308 especially 168 gr. HPBT /OTM
400 - 500:?
500 - 600:?
Shooting a 'fun' 600 yard match on Friday and only have dope out 400.
Thanks!
fisherdawg
4, 5
If you want to compare different rounds and how they perform... Your 168 gr OTM are going to be somewhat different than XM80, etc ball ammo. http://www.hornady.com/ballistics-resource/ballistics-calculator (http://www.hornady.com/ballistics-resource/ballistics-calculator)
Quote from: fepowered on June 18, 2014, 05:45:18 PM
If you want to compare different rounds and how they perform... Your 168 gr OTM are going to be somewhat different than XM80, etc ball ammo. http://www.hornady.com/ballistics-resource/ballistics-calculator (http://www.hornady.com/ballistics-resource/ballistics-calculator)
Thanks -- for this match it'll be 168 gr, but I do shot other stuff especially when NATO surplus can be found.
I think Fred had an article with standard come ups out to 1000 yds
Quote from: 509gman on June 18, 2014, 10:12:33 PM
I think Fred had an article with standard come ups out to 1000 yds
Standard comeups would be for standard ammo... and standard barrels.
For a starting point from a 100 yard zero to 1000 yards, you might try 3,3,3,4,5,5,6,8,8 or 3,3,4,4,5,5,6,8,8. These should get you on target and will require some additional correction.
Also a wind formula that may work for you would be as follows:
Full Value- 10 mph wind- Range- [(1 MOA correction per unit of 100 yards) - 1 MOA] = correction into the wind.
example: Full Value- 10 mph wind- 600 yards- [(1 MOA per unit of 100 yards or 6 MOA) -1 MOA] = 5 MOA wind correction
As always your mileage may vary.