Measuring reticle subtensions

[Flight01]

Anyone know their reticle subtensions?
I’ll be figuring out my 3-9x40 duplex and what drop it equates to with my 225 grain inter bonds.
Just wondering what others have found with their various combinations

[obsessed1]

I know precisely what my reticle subtensions are for each rifle and have a dope book for each gun for quick reference in the field

[Flight01]

Excellent. This is my goal for this set up

[catnthehat]

All I have to do is get a range and I know where I have to aim or if I have to get closer with my hunting rifles .
Cat

[Dean2]

You realize every scope maker has the actual measurements on their website? and that the measurement changes as you change to magnification. It is pretty easy to make a range card with those and your drops on it. I have one taped to each rifle. Most of my Varmint guns have Mil-Dot reticles on them so that the substension measurements are the same, all you need to know is what power to set the scope and I put a red dot of nail polish on the correct power setting as it varies between scopes, even of the same make.

[Flight01]

Originally Posted by Dean2

You realize every scope maker has the actual measurements on their website? and that the measurement changes as you change to magnification. It is pretty easy to make a range card with those and your drops on it. I have one taped to each rifle. Most of my Varmint guns have Mil-Dot reticles on them so that the substension measurements are the same, all you need to know is what power to set the scope and I put a red dot of nail polish on the correct power setting as it varies between scopes, even of the same make.

Can you find the measurements for a 3-9x40 bushnell elite firefly?
I can’t seem to.
My scopes that have ballistic reticle are easy. The manufacturer sends the data to you in the box , then you field prove it.
I’m talking standard duplex and such.
I’ll figure it out for my own scope, just wondering what others have seen
It’s my moose gun and I’ll likely sight in at 150 or 200 yards , but want to field prove what the point of fine crosshair to thick crosshair will equate to , then my reticle steps up once more to the post thickness.
I don’t mind hold over but I want to know those points for my set up.
Once I test it I’ll report back here to try and get some numbers for others to compare to.

[Redneck 7]

I know on my 7mm-08 and my reloads that it’s zeroed 2” high at 100 yards and works out perfect to where the Leupold duplex bottom post has a point, is bang on at 300 yards.

Best way would be to just have a range day and see how what it works out for you, like stated before, second focal plane scopes that will all change on a different power.

[Flight01]

Originally Posted by Redneck 7

I know on my 7mm-08 and my reloads that it’s zeroed 2” high at 100 yards and works out perfect to where the Leupold duplex bottom post has a point, is bang on at 300 yards.

Best way would be to just have a range day and see how what it works out for you, like stated before, second focal plane scopes that will all change on a different power.

Yes. Thank you. This is the info I was looking for.
Different for every scope, every magnification and every caliber/velocity but still info someone might find interesting
I will post my results when I get out.

[Redneck 7]

Originally Posted by Flight01

Yes. Thank you. This is the info I was looking for.
Different for every scope, every magnification and every caliber/velocity but still info someone might find interesting
I will post my results when I get out.

What caliber is the rifle?

[Dean2]

I could not find them either. Even looked in a couple of my 4200 elite manuals, talk about the reticle and how to charge it so it glows, but no substension numbers. Everything else, no problem but not the Firefly. Easy fix, put a grid target up on your wall at a measured distance. Look through the scope and see how many 1" squares are between the cross hair and bottom thick point on 3 power. It will be 1/3 that amount on 9 power.

You probably already know this but in case others are interested;

Example, 10 yards, lets say the crosshair to point where it starts to get fat covers 1 inch at 3 power. That will be 1/3 of an inch on 9 power at ten yards, so 10 times as much or to 3 1/3" at 100 yards on 9 power., so 10" at 300 yards. You can then verify that next time you go out shooting. Zero at 200, move reticle up to point of the fat spot and you should be 6 2/3" high.

[Flight01]

My particular set up will be a 20” Ruger compact magnum in 338RCM shooting factory 225 grain Interbonds.
Scope is a Bushnell 3-9x40 elite with firefly reticle.
I don’t use the firefly option that often it’s a bit gimmicky but is an option. The scope however is very reliable and I’ll figure out the 2 reference points
I’ll probably test at 9power and once more at 6 power.

[Flight01]

Thanks Dean
Good idea to do a grid measurement
I’ll also do a field verification for my load and put all Info here.