i'm not really specialist on i-185 and not read, carefully, all these great books by Maslov etc, well, not mass plane etc... but... i think weapon for all i-185s ie and with m-82 and with m-71 was same, ammo boxes too, so, apparently if in 4.11 how and in 4.09 all planes have 220 rounds for each shvak, 660 in total, it's wrong...
correctly - from
"brief technical description of plane i-185-71 (etalon)", 1942 - 560 in total (250 for upper gun, 170 for right gun, 140 for left gun)...
plus, i-185-71 ie plane with m-71 had or could have bombs and rockets how plane with m-82 in game,
page from description, but at first maybe need fix only main error if this true ie after confirmation from books...
apparently, it's will be very easy...