If you enjoy the forum please consider supporting it by signing up for a NES Membership The benefits pay for the membership many times over.
Be sure to enter the NES/MFS May Giveaway ***Canik METE SFX***
But if the riflescope is zeroed @ 100 yards, what benefit would the 20 MOA slope have with a .223?
Okay, I'm getting how the slope won't effect the BDC. And I can see how the mount's slope would be beneficial if the zero were much further out, or if the load being used had a significant drop, exceeding the scope's internal adjustment. But if the riflescope is zeroed @ 100 yards, what benefit would the 20 MOA slope have with a .223?
Yes, the .223 55gr BDC, with 20 MOA mount, seems like a bad combo. Target distances will be within 300 yards. Since the point of the BDC is holdover, rather than turret twisting, one would negate the other? And a 100 yd zero, combined with the relatively flat trajectory up until then, would mean using a lot of adjustment to offset the slope of the mount. This is a friend's 4-16 Nikon, which has only 40 MOA of internal adjustment. I'm going to suggest he find a 0 slope mount for it.
With the bullet drop @ 100 yards being less than 2", and the scope on a 20 MOA slope, wouldn't the scope require quite a few clicks of elevation to zero? I've got a 4-16x Nikoplex, mounted on the 0 slope M223 mount, and it didn't take much tweaking to zero @ 100 yards with the 55gr loads. Not that the 20 MOA mount can't work in this situation, but it doesn't seem to be the optimum setup if the scope's elevation has to be cranked so far off center to zero?
For example, if your scope has 40 MOA of total vertical adjustment, you have 20 MOA of up and 20 MOA of down available when your reticle is centered. If your zero at whatever range is dead-center (not likely but just for this example let's assume it is), and you add a 20 MOA rail and re-zero, now you have 40 MOA of up adjustment and 0 MOA of down. So now you can take shots and accurately dial where you may need up to 40 MOA of come-up, rather than the 20 MOA you had.
i have a p223 scope but my p223 scope mounts are on back order anyone have any ideas with a suitable replacement?
even if i have a mbuis on my m&p sport?