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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Changing regular turrets to M1's
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<blockquote data-quote="cowboy" data-source="post: 464473" data-attributes="member: 8833"><p>When I or either of my sons gets a different scope one of the things we check is what a scope is actually doing versus believing each click is 1/4" at 100 yds. Take a LARGE piece of paper, set up at 100 yds. with your bull dead center. Shoot dead on at the bull and assuming you've hit the bull a number of times then crank up your scope up (let's say 60 clicks), Shoot a number of rounds until you are comfortable, then we turn the scope down 120 clicks (60 down should put you at your original zero) shoot a number of rounds again until you are comfortable. If each click is worth 1/4" then theoretically you should have the top group exactly 15" higher than the bull and the same 15" lower than the bull on the bottom group. Both groups will in my experience be very close distant apart from the bull.</p><p>Let's say your groups are 14.25" from the bull. Take 14.25" devided by 60 clicks and you get .2375. Your scope is not a .25" per click but a .2375" per click. Put that number into a ballistic calculator and you will have a much more accurate drop chart. This diff. really shows up when you start cranking up to shoot beyond 500 yds.</p><p>PS: I looked up my son's info on his Leo 4-14X50 30mm tube and it was the above example I gave you.</p></blockquote><p></p>
[QUOTE="cowboy, post: 464473, member: 8833"] When I or either of my sons gets a different scope one of the things we check is what a scope is actually doing versus believing each click is 1/4" at 100 yds. Take a LARGE piece of paper, set up at 100 yds. with your bull dead center. Shoot dead on at the bull and assuming you've hit the bull a number of times then crank up your scope up (let's say 60 clicks), Shoot a number of rounds until you are comfortable, then we turn the scope down 120 clicks (60 down should put you at your original zero) shoot a number of rounds again until you are comfortable. If each click is worth 1/4" then theoretically you should have the top group exactly 15" higher than the bull and the same 15" lower than the bull on the bottom group. Both groups will in my experience be very close distant apart from the bull. Let's say your groups are 14.25" from the bull. Take 14.25" devided by 60 clicks and you get .2375. Your scope is not a .25" per click but a .2375" per click. Put that number into a ballistic calculator and you will have a much more accurate drop chart. This diff. really shows up when you start cranking up to shoot beyond 500 yds. PS: I looked up my son's info on his Leo 4-14X50 30mm tube and it was the above example I gave you. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Changing regular turrets to M1's
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