bdc scopes

kms1961

December 07, 2009 12:38

hello all me and a buddy was wondering as we looked thru a catalog at the scopes. some but not all the scopes with the multipule sight points said to zero them in at 100 on the highest power. most of them seemed to be for muzzleloaders but not all.was wondering for the multliple points to be accurate does it have to be on 9x when using them?and if so what makes this nessecary.if you use them at say 6 x are they not correct? hope this makes sense. the one we saw 1st was nikons,then a cabela brand. thanks in advance. Kevin

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  Tailgunner1954

  December 07, 2009 16:53

  It depends on weather the retical marks are in the first or second focal plane. If they are in the first (front) than it dosn't matter, if they are in the second (rear) than it does.
  Shepherd scopes have 2 sets of reticals, the one with the ranging/aiming marks are in the first, while the main cross hair is in the second.
  
  One way to tell is to zoom the scope while looking at a target. If they stay the same size, relitive to the target (changes to your eye), than it's a first plane retical, if it stays the same size to your eye (gets bigger/smaller to the target) than it's a second plane

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  elkcrazyfred

  December 07, 2009 19:46

  I sight in dead on at 200. First mark down is 300. By shooting or by charts see how far your bullet drops at 300.Usually 7-8 inches. Measure that distance say on a building or anything at 300.Orange sight in dots work great. Twist the scope zoom higher or lower to bracket that distance between the big crosshairs and first mark under them and write what power it is.You can test scope at 100 by dividing your 7-8 amount by 3 and bracket that. After that the only time you can correctly use the 300 yd marker is when set it at that power. Then do the same for the lower marks. It is extremely important to do the longer marks individually as a little off is a lot down range.The scope marks are similar to boresighting in that they just get you on the paper.Remember, if the scope mark is over-adjusting for drop- turn the power setting up.Lower powers will raise your bullets impact.Hopefully they all work out to the same power setting but I doubt it. You will have to memorize those numbers or write them on the butt pad on tape. Practice different ideas like a Q-back wrist play list. I tape that info on butt pad.

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