Post by deadeye on Nov 27, 2016 22:56:27 GMT -5
in regards to 2nd focal plane scopes I think many assume as far as reticle hold the manufacturers give you the calibrated power that is supposed to be accurate. most scopes the reticle's are calibrated at max power. some differ look it up per scope.
example- nf atacr 5x25 is on @ 25x power however the nf nsx 8x32 is calibrated @ 22x per box instructions etc.
so my test this evening without a shot fired.
#1-double check ocular to make sure crosshair is still crisp-yes
#2-parralax adjusted properly@ 100yd bench
#3-make sure 100yd bench is actually 100yds-used my leica 1600range finder moving portable bench each way until satisfied it was 100yds
#4-make sure optic is centered/no dark 1/4 moon shadow slivers & such. done this a few times taking breaks when eye straining occurred.
so now my homemade 100yd template.
with a moa reticle adjusting the power setting I am able to near perfectly line up my hash marks per scope moa reticle per template board. did this quite a few times to make sure I was not fudging anything.
results which I suspected from prior long range shooting with a few calibers not getting exact hits(vertical)/results @ several long range distance's different days/outing's etc.
nsx 8x32 near perfect reticle/template alignment-now to check what power this scope was actually achieving/according to nf 22x or marked R....results
as you can see the power/knob is off/don't look like much but a view through the scope is a different story. huge problem @ extended ranges accuracy wise.
the 5x25 atacr was much closer but not perfect as the knob was bottomed out/probably needed a 1/16th" more turn but very close.
we know a tall test per dialing needs to be performed! but on reticle holds if one plans to do that needs to know the correct power value.