Post by bluedot on Dec 6, 2018 19:55:16 GMT -5
Skykid:
Here's an article for you to read. If you are starting out and don't know either system, you can learn both. BUT, like Picklehead says, make sure your complete system is the same, either MIL or MOA. It's easier for me to do the math in my head with MOA vs. MIL.
Here's an article for you to read. If you are starting out and don't know either system, you can learn both. BUT, like Picklehead says, make sure your complete system is the same, either MIL or MOA. It's easier for me to do the math in my head with MOA vs. MIL.
I have a 5.5-22x50 NSX w/zero stop scope on the 7mm AM, and it has the now discontinued NP-R1 reticle. 1 moa divisions up/down, 2 moa divisions horizontal. It is a SFP scope, meaning that if I want to use it for ranging I have to have it on a certain magnification. On this scope that is 11 power and there is a dot on the power adjusting ring to let me know where that is. The reason I wanted a SFP scope is that at higher magnifications at a distance, my crosshairs don't cover a larger part of the target. I have a Swarovski FFP scope and it's hard to get a consistent hold at something that is over 700-800 yds away because the "hair" covers a larger part of the target.
BUT, I don't use the Nightforce for judging distance, I use the click adjustments for dialing it in at a distance for elevation. For windage, I use the hash marks in the scope, but I'll WAG it using the data from the ballistic program that tells me how much to dial in for drop. I can dial in for windage too if I want, the program tells me how much to dial. There is no zero stop on windage, so I have to remember to dial it back to 0 after shooting or I'd be lost. I have the gun set up for a 300 yd zero and on the zero stop I have it adjusted for 1/2 moa under the 300 yd zero.
On another note, if the scope changes zero when adjusting the parallax, then the scope isn't built to quality standards. Now if we are talking changing point of impact on any of the subtend marks on the scope on a SFP scope, that is correct, the distance between them changes with the magnification change. That does NOT happen on a FFP scope.
Skykid, take a look through some scopes that are SFP and FFP adjust the magnification and see how much of the target the reticle covers up. With a SFP scope the crosshairs stay the same size, and the target will grow larger or smaller with magnification. i.e. the crosshairs will not get fatter wtih more magnification. With a FFP scope, when you increase the magnification, the crosshairs stay the same size in relation to the target, so they seem to cover more of the target as the magnification increases.
In other words, if the crosshairs in a FFP scope cover 2" or 3" of the target at 1,000 yds on the lowest power, they will still cover that much of the target when on highest power. With a SFP scope, the crosshairs stay the same size and only the target increases in size, so the crosshairs seem to cover less of the target (to me that allows a finer, more precise aiming point at a distant target).