What size is the battery for the red dot target scope please?

I use a 22 cal rifle laser on mine , the 22 is nearest the same diameter to the bolts I use so I can lay laser right into same bolt bed on frame that bolt normally rests in , then bench rest bow and get into shooting position then adj scope to bring crosshairs/ reddot onto laser dot at white target board , try to adj at distance you'd comfortably take a shot at

Simply put, the Mil-Dot is a way to estimate range with the scopes reticle. This type of reticle was developed for military applications. The space between the dot centers is equal to one milliradian (Mil). hence the name mil-dot. One Mil equals 3.6" inches at 100 yards, or 36" at 1,000 yards. To use this system effectively you must know the size of the target. For instance most people are an average of 6 feet tall or 2 yards. The formula used for determining range to the target is (size of target x 1000 divided by number of mils the target covers). Hope this helps FixYa up.

Here is a manual, which will give the battery size and number for your model. Tasco Red dot Pro.

The PDP3CMP takes DL1/3N or 2L76 (2)

One of those nickle sized batteries, 2032 or the bigger 2430, they are both 3 volts. The battery is under the left side cap. It should say what size it takes someplace on there. Hope this helps.

CR2032 button style batteries

this is the way they are at high power,,, to set the scope up the easy way is clamp the rifle in a jig fire a round and were ever the round lands turn the turrets to put the red dot over the hit mark then fire another round at the target the bullet should be spot on the dot

Tasco's Contact Information is here

Thier website didnt have an information on scopes that old that i could see. however if you contact them im sure they would know what size the battery needs to be, and would be happy to refer you to a place to purchase them (if not a product they themselves supply)

NOTE Tasco is a European company residing in Spain Madrid. You may be asked to send it overseas to be identified? (worst case scenario) if this is the case be sure to purchase a number of batteries for the device to make it somewhat cost effective

:) (I couldnt find the battery type as i dont know exactly what scope you have :(

Brad

Here's what you need to know about Mil Dots and rangefinding.

When you look through the scope you should see 5 mil dots on each axis, your scope may have broad lines taking place of the 5th mil dot if it is a "modified" mil dot scope. For measuring purposes, 1 mil is the distance from the center of one dot to the center of the one directly above or below it. 3/4 of a mil is the distance from the top of one dot to the bottom of the one above it, or the "space in between dots". 1/4 mil comprises a single dot, the space between the top of one dot and the bottom of that same dot.

A quick calculation is Size of Target (In Yards) x 1000 / Size of target in mils = Range in Yards

Miliradian or "Mil" is an angular unit of measure, so if you were shooting at 1000 yards and moved up 1 miliradian that would be one inch impact moved up.


Anyway lets say you have a 30" target and we need to find the range... using your scope you place the bottom of the target at the CENTER of a mil dot and count how many mils up, good estimation is key... I'll draw a little text diagram, an asterisk * will be the target top and bottom, and parentheses () will be a mill dot
( * )--------(  )-----*---(  )
Now lets assume the asterisk on the left is the bottom of your target and the one on the right is the top, I put Ten Hyphens in between each dot so if you count from the left you should get about 1.6 Mils. Its real easy to do it in your head, you already know two whole dots is one mil so you just have to estimate whats to the right (or top if you were looking down a scope).

So we know the target is 30" and we have a Mil Reading of 1.6
30/36= .833 so 30" is .833 Yards

So now we can use the equation .833 x 1000 / 1.6 = 520.6 Yards is the distance of the target


Now you can also use Mil dots to do hold over for when the target moves or for wind and elevation but that gets extremely complicated.


Parallax in Rifle Scopes is explained here 
http://www.6mmbr.com/parallax.html


There are many books and websites to confirm what I've said here, but the best way is to go out to your range and talk to some long range shooters and show them your rifle/scope etc and get hands on help.
 

The PDP3CMP uses the CR2032 batteries.I had one and gave it to my son who uses it on a huge pistol.I gace him several spare batteries with it.You always need a spare for those things.Good Luck