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Sig Romeo ballistic drop values Login/Join 
Member
posted December 09, 2019 08:38 PM
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
 
Posts: 3161 | Location: Pnw | Registered: March 21, 2009Reply With QuoteReport This Post
Member
posted December 11, 2019 12:32 PMHide Post
The dots are 5,9 and 15 moa from the center dot per Sig just in case anyone is interested.
 
Posts: 3161 | Location: Pnw | Registered: March 21, 2009Reply With QuoteReport This Post
Freethinker
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posted December 11, 2019 02:28 PMHide Post
I 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




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Member
posted December 12, 2019 11:11 AMHide Post
Makes sense, Thanks for the info.
 
Posts: 3161 | Location: Pnw | Registered: March 21, 2009Reply With QuoteReport This Post
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