Bullet Drop Recticles

Camelot43

Does anyone know what caliber rifle Nikon or Leupolds Bullet Drop Compensating Recticles are modeled after?

I think Leupolds was based on the .270 but not sure...

If there were a generic caliber for bullet drop what would it be?

Wehrmacht_45

I dont know. I know that I have two scopes specifically made for .223 Remington. My guess would to email the scope manufacturers and just ask.

shootuadeal

the nikon bdc uses two different models basically the standard whereas the crosshair is 100 yards and the circles below are 2,3,4 hundred and the magnum which is 200,3,4,5. it also has a chart that is a little more precise in the box. ask you local dealer to show it to you.

Camelot43

The recticle and the hold points are based on an average...

My question is what caliber is it based off of?

I have an old Leupold scope that I was going to have the LR Duplex put into but it is too old... So I have to make a custom one - I don't want to lock it down to any certian rifle so I want the best in the middle caliber to base it off of so it can be used as the regular generic BDC Recticles.

hk-91

I was told buy customer service there all based on .270 that was from leupold.

tsr1965

quote:Originally posted by Camelot43
The recticle and the hold points are based on an average...

My question is what caliber is it based off of?

I have an old Leupold scope that I was going to have the LR Duplex put into but it is too old... So I have to make a custom one - I don't want to lock it down to any certian rifle so I want the best in the middle caliber to base it off of so it can be used as the regular generic BDC Recticles.


They are based on an average of all calibers. The trajectories of most standard calibers are very similar, and the trajectories of most standard magnums are similar, plus or minus a few inches. There is a lot that has an effect on trajectories...bullet weight, altitude, barometric pressure, temperature, velocity(yes most factory loads are listed to a muzzle velocity...that is in a test gun, not yours. most factory listed velocities are a bit optimistic.), and the height of your sight above the centerline of the bore.

There are some scope making companies that will make a reticle per your load/rifle/scope set up. They are expensive...extremely expensive. Most long range shooters who are not shooting at the range, use a range finder, and dial in the elevation in MOA. So basically the Nikon/Burris/Sightron/Leupold reticles work for rounds that are close to the average well. For the most part, they are gimmic's.

Best

JustC

reticles with a known spacing (mils, moa, etc) are far better for one reason,..they can be used for any chambering. Take the Nightforce R2 reticle, at 22x the spacing between the hash marks is 2moa,..therefore, you can use them as a holdover or dial in with the turrets. All you need is a rangefinder and a good drop chart.

The Nikon looks "funky" to me, and that comes from someone who says the Nightforce NP1-RR reticle isn't busy to his eyes. The circles just aren't precise enough for me, I prefer intersecting hash marks or dots.