December 09, 2019, 08:38 PM
AnubismpSig Romeo ballistic drop values
I'm looking at a Romeo 4h for a rifle and wanted to know if anyone has the ballistic hold drop values for each dot? Even the measurements between so I can figure out my own ballistics would be great. Sig is sadly pretty bad about putting reticle info anywhere
December 11, 2019, 12:32 PM
AnubismpThe dots are 5,9 and 15 moa from the center dot per Sig just in case anyone is interested.
December 11, 2019, 02:28 PM
sigfreundI ran across those figures someplace, but I believe I misinterpreted your question.
I suspect the four dot reticle is more or less calibrated for a 200 yard zero with both the M855 5.56mm NATO round and the 7.62mm NATO (150 grain bullet at a nominal velocity of 2820 fps).
Using the Applied Ballistics solver, the ballistics data I could find for both cartridges, “standard” atmospherics, the dots match their trajectories reasonably well for 300, 400, 500, and 600 yards.
Calculated drop at difference distances in minutes of angle:
M855
200: 0
300: - 2.34
400: - 5.42
500: - 9.26
600: - 14.03
M80
200: 0
300: - 2.39
400: - 5.36
500: - 8.86
600: - 12.96
December 12, 2019, 11:11 AM
AnubismpMakes sense, Thanks for the info.