Rifle Scopes Nikon M223 on M6A2

[MDM1911]

I just recently purchased an M6A2 with all the goodies on it including a Nikon M223 scope. On the top of the scope it says it is designed for polymer tip 55 grain. Knowing the barrel has a1:7 twist I want to use a 68 grain bullet to maximize potential. Will a heavier grain bullet be an issue for this scope? Does any one have experience with this?

 

[Hogshooter]

Re: Nikon M223 on M6A2

Short answer is yes. Trajectories will be different between the 55 and the 68/69 projectiles at distance. Even if you shoot 55 gr. V-Max/BT/Blitzking the elevation turret may not match up exactly due to differences between rifles and ammo. It should be fairly close with the 55 gr. stuff though.

 

[MrSwede]

Re: Nikon M223 on M6A2



Bring gun to the range.
Zero the gun.
Adjust the turrets so that zero is "0".
Put yellow PVC-tape on the turret, and mark "0" with a permanent marker.
Use a ballistic program to get a ballistic table.
Test ballistic table and note your DOPE.
Input said dope on the turret using permanent marker.

Voila.

Your scope that was calibrated for 55grs going XXXX fps at some random DA (maybe far off for your AO) is now calibrated for your ammo, with the velocity using your gun, at that days DA, in your AO.

Much better than a generic turret.