Question about Tasco 3-9x40 World Class Riflescope 30/30 Reticle scope Clam Pack WC3940MD

# I have a Tasco RC39X40WA scope that has a rail mount on the underside and need to know what I need to mount this to my rifle

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Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

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.

Posted on Mar 16, 2009

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

Posted on Mar 25, 2009

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 :(

Posted on Apr 12, 2009

I need an adjustment cap for a Tasco Golden Antler 3x9. Where or how do I get one.

Posted on Aug 30, 2010

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### Point of impact changes with every shot

Mount the rifle with the scope and make a mark on the backstop right where the crosshairs are pointed at

Shoot several times, several shots will surley jolt the scope some.

If the crosshairs have moved much past your mark then this would indicate the scope is the issue.

If the crosshairs are still pretty well centered to the mark, its not the scope.

If at the same time your grouping looks terrible, and your scope still is on the mark, and the gun is WELL mounted, then the issue is with the accuracy of the rifle.
Make sure the rifle is mounted good for this to ba accurate .
Hope this helps

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### PARTS FOR A TASCO RIFLE SCOPE

Hi, I think they can be found on amazon. here: Amazon com tasco rifle scope parts I hope this was helpful. cheers

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