Scope help needed M223 Nikon

[ms6852]

I have not been able to find any definitive answers and have waited a few days for a respond from Nikon via Email. Here is the question, is the M223 Nikon scope with BDC reticle only calibrated for the 55gr at 3000+ fps?

Reason I ask is because I have a Monarch with BDC reticle mounted on a Rock River Arms predator pursuit and it is dead on to 600 yds using the bdc reticles with a 200 yard zero.

Reason I am interested in the M223 Nikon is that it has a parallax adjustment knob which my monarch does not. Parallax is terrible beyond 100 yds, and I want to develop loads using the Ladder Test at 200 yds. But the elevation knob is marked with 55 gr bullets at a certain velocity and was wondering if I could use different grains zeroed at certain distances and still be able to use the bdc reticles with the m223 like I can with my Monarch? Thanks for your help.

 

[OpticsPlanet]

BDC 600 Reticle
Developed specifically for the trajectory of the .223
Rem./5.56 NATO round with 55-grain polymer
tip bullet (3240 fps),

http://www.nikonusa.com/pdf/sportoptics/M-223Riflescope.pdf

Tim G.

 

[SilentStalker]

Technically, it was designed for that one and only round. However, from my long range shooting experience I have found that the differences between say a 168gr A-max hold over vs. say a 175gr Federal BTHP Match round is not all that different. So, there is really only one way to have conclusive data on this and that is to try it. I have the BDC reticle and often use it to shoot 62gr military ball ammo if that tells you anything. It works for the distances I have used it at but thats only 300 yds as well. The reticle is second focal plane and is not a fine enough reticle for you to be real precise. There is going to be more of a chance of you moving when shooting and being off than there is using that reticle and being off more than likely. I am pretty confident that it will still work with other rounds at those distances. You might find that you have to hold to the bottom of a circle or something instead of right in the center but you will get the idea. Then you will just have to visually know that the next time you are out. Make a DOPE sheet using different rounds and record your findings.

 

[REB]

you can use Nikon's BDC software to input your setup and it will calculate the BDC ranges.

http://www.nikonsportoptics.com/en/Nikon-Products/Hunting-SpotOn/index.page

 

[ms6852]

Thanks guys, I decided to mount a Sightron Big Sky 4-16 X 44. This scope a very fine reticle plus 1/8 click adjustment that will allow me to get the precision and accuracy I need out of my loads. I was just being lazy.