JOBBIN 0 Posted August 27, 2021 Hi guys, I'm making a ballistics calculator for vanilla A3 and I'd like to use it to calculate holdovers for the RCO (ARCO, ERCO, MRCO, etc.) family of scopes on a variety of different guns. Essentially, each RCO-style optic has a fixed 300m zero and a BDC reticle with holdovers calibrated for a specific gun (RCO on the MX, ERCO on the SPAR, etc). Common knowledge among the community is that the RCO/ARCO are meant for 6.5mm, ARCO for 5.56mm, etc., but this is not broadly the case. In order to calculate these holds on each weapon, I need to know the reticle subtensions in MOA/mils for the RCO, ARCO, and so on (see this example). I've tried to determine these via experimentation in-game but have only gotten a rough idea. Does anyone have any ideas for how to determine these? Share this post Link to post Share on other sites
