I may be incorrect but I believe the LEE Dot and Leupold Dot are one in the same correct??
Many years ago my grandfather and I were talking rifles, loading...and scopes.
He began to talk about the LEE Dot and I listened. Although I don't recall the specifics about the LEE Dot's demensions and how he held it using his old .280Rem, I did get me to thinking about reticles and I did some playing around w/ my leupolds.
This article is what popped out the other side: Using The Rangefinder Inside Your Scope
You may or may not find it useful, but many of us here have. This is the info that Stickfish mentioned above. I have leupolds on most of my rifles and the Std Fine Duplex reticle in my 6.5-20x's will subtend ~13" at 500yds on 20x. Since my .338Ultra drops 24" at 500, this means I simply have to hold the tip of the post flush to the back to compensate for the 24inches of drop.
Although your rifle, caliber and ballistics may differ from mine, the simple fact of KNOWING that your scope's reticle can be used as a measuring stick is useful. Personally I think you'll find some setting (As Stickfish & myself have) that will result in the perfect measuring stick for your caliber and sight in zero preferance.
I sight in my rifle's using the MPBR Theory (MAX Point Blank Range) which says that for normal hunting we can tolerate a sight in range that results in the bullet being no greater than 3-4" high at the mid point and still kill that animal w/ a dead on hold. For me that range is typically 200-250yds for std calibers and ~300yds for the magnums. This also typically means my bullet will be ~3-5" low at 50yds beyond my zero. This means I can hold dead on to 350yds without compensating for drop. And this is were Stickfish's mention of setting the scope's magnification such that a deer/elk is "Bracketed" by the reticle. This is a GO or NO GO measuring stick. ANd you simply hold dead on....and it's dead. It's only when you find that the animal is smaller than your predetermined GO/NO GO setting that we get into hold over. And again a little knowledge of the Leupold reticle will arm you w/ the nessessary measuring stick to make a precise measured hold over shot.
Lets take my .338Ultra as an example again.
I'm dead on at 300yd, -5" at 350, -9 at 400, -15" at 450 and -24" at 500
I hold dead on to 350yd, fudge 6" high at 400, hold cross flush to back at 450, and (adj scope to 20x) and hold tip of post flush to back at 500.
I'm sure you'll find some similar combination with your caliber.
Works plain and simple. A rangefinder and a measuring stick right there at your fingertips.
Just need to learn how to use it and put it to work for you.
Hope this info helps,
PS: I had one of those fancy LR Varmint reticles put into a 6.5-20x VARI-X III on a .30-378WBY.
I have to admit it seems pretty cool, but we haven't had need to use it .....YET.
PPS: Here is a thread we had on MPBR Theory: Max. Point Blank Range and where to Zero