I ran an M3 up onto a shore battery and parked it next to the back wall. Then in F3 mode I took screen shots.
M3 - 6.18m long or 20ft.
Shore Battery - 120ft x 40ft (120ft = 36.5m)
Shore Battery Dope Sheet
12,000 yds - 3.3Mil
16,000 yds - 2.4Mil
18,000 yds - 2.2Mil
19,000 yds - 2.1Mil
20,000 yds - 2.0Mil
You can fill out the rest of this Dope Sheet with this:
Angluar Mil Formula
D = Distance in meters
S = Size in centimeters - you can use meters in place of s\100.
Divide S by the result of dividing D by 1000 and you get a quicky Mil reference.
Just place your turret back at it's default position unzoomed. Toggle Sea Mode. I gave up worrying about the slight missalignment after 15 minutes of messing with it. I think by default the Mil cross hair hash ladder ascribes an (x, y) postion to the left side of the circle so you can use the numbers on the hash laddder framing it. Could be a bug.
The thing is to get your ranging salvos then rely on the yellow horizontal Mill ladder to tell you your bore line for zero point impact or to calc your lead for the relative motion of both targets. Frankly I'm faster ranging in free mode knowing the circle is 18Mil.
You have an auto range computer in green letters. Use it to micro adjust your range. The best thing Sea Mode did for me was to lock my battery steady to a known center in that yellow hash grid while allowing me to make micro tick elevation and lead adjustments over how loose free mode is. Some players will have a touch for raising the elevation until they beleive the yellow hash ladder is spot on. I've also seen lots of fishing around by players who don't have that magical touch. So I use my dope sheets for my first look at the enemy target to get within 100-200 with my opening salvo. Makes tuneing the yellow hash grid to the water line of my target simpler.
Offline you can target the parked ships at your CV's port along with the shore battery to practice.
Woops sorry wrong game. Our earth cruiser is only 185.4m long.Cruiser Battery Dope Sheet.
Cruiser circle reticle = 18Mil
Cruiser = 185.4m length
Cruiser @ 12,000 yds = 17.0Mil
Cruiser @ 16,000 yds = 12.6Mil
Cruiser @ 18,000 yds = 11.3Mil
Cruiser @ 19,000 yds = 10.7Mil
Cruiser @ 20,000 yds = 10.0Mil
If the yellow hash grid is in Mil
(10+5+0+5+10) . You have been given a ranging tool along with the grey Mil hash cross that follows your PoV.
You ever looked through a pair of WW2 naval "long" binoculars and wondered what the hash reticle was about?