Hey buddy, hope that I can help, and to probably answer the question that you're asking I'm going to need a bit more info. I'll do what I can right now with what I do have. The "cheat sheet" for mil-dots is basically the mil-dot master, which is basically a analog caculator that works in a slide fashion. This is one
http://www.midwayusa.com/eproductpag...eitemid=131691 .
Now I'm not sure exactly what you mean about the sight in question, but I'll see what I can do. First off, are you positively SURE that they measure their mils at 3.44" (inches)? Typically 1 mil is 3.44 MOA, this is where people make a slightly false reading. Most people believe that 1 moa is equal to 1", but that is not the case, that's why (about) 3.44 MOA equal 3.6". So if the mil-dots actually measure 3.44", then it's not actually a true mil-dot reticle. You may want to contact the company that makes your scope and talk to someone that REALLY knows, or actually take it out and measure to know for sure. Either way, whatever your reticle's TRUE measurement is at that distance, from one mil-dot to the next mil-dot will be the same measurement. This means that assuming 1 mil is 3.44", from center crosshair to first mil is 3.44", distance from the first mil to the second, and second to third, etc, will each be 3.44" MORE. This means that from the crosshair to the second mil-dot will be 6.88", etc. Keep in mind this measurement ONLY applies for 100 yards. At 200 yards, 1 mil will be double the size of what it was at 100 yards; so 1 mil will be 6.88". Since it is an angular measurement, it changes wit the distance.
I'm trying to get exactly what you mean about "what would it be for that (to site in your rifle at 200 yards". The DOPE for your rifle is dependent upon the velocity that the bullet is getting shot at, weight of the bullet, the Ballistic Coefficient of the bullet, and even air density. It is NOT something that is dependent on the mil's. I'm trying to figure out if you're asking where your bullet will hit at 200 yards, relative to the reticle view with a 100 yards zero. Is that what you're asking? Are you asking about where you would have to hold for 200 yards, if you are shooting with a 100 yard zero? Or are you trying to ask me how to zero your scope at 200 yards, as opposed to 100 yards? Whichever you're trying to accomplish, you will need to know the drop that your bullet makes between 100 to 200 yards. As I stated before, this is depending on alot of things; you can either get it by plugging in all the EXACT values in a good ballistics calculator and get a good idea, or you can just go out and shoot to 200 yards, with your 100 yard zero and see how much lower the impact is. Once I have this info, I might be able to give you what you are asking for, before that, I don't think I'll be able to help much buddy.
I wish that I could help more, but I think that's all that I have so far. I am more than happy to help more if we can get a bit more info. No worries about your "rifle-fu" being a bit weak, lol, I like to think mine is a bit strong for my age. I've spent alot of time studying it all, and hey, you gotta learn some time. Hope this helps and keep asking questions, or ask me to elaborate on anything that I need to.