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Do you use a scope level to keep your rifle level?
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<blockquote data-quote="GBA1776" data-source="post: 1196931" data-attributes="member: 20522"><p>I think having a level is crucial for all types of shooting, even at relatively short range if you are shooting groups removing all variables is key, so if you have a variable cant ranging from 0-5 degrees you will have a variable horizontal shift on top of any wind. </p><p></p><p> At 100yds in a full value 10mph wind you are only looking at .05-.3 Mil wind depending on the cartridge, with a 5 degree cant you may add .1 mil to the wind or subtract it. And having a .36" variable while shooting groups is not good. </p><p></p><p> For example a 77gr 5.56 with a .362 BC in a full value 10mph wind only drifts .25" at 100yds, but having 5 degrees of cant on top of that can reduce that to .15" or increase it to .35" </p><p></p><p> 5 degrees of cant will add .1 mil of drift for every 100yds in the direction of the cant. </p><p> </p><p> At 500yds the same 77gr 5.56 will drift 9" with a 5 degree cant. </p><p> A full value 10mph wind for that round at 500yds needs a 1.5-1.6 mil correction, if I have a 5 degree cant, I will either add .5 mil to the wind or subtract it. </p><p> </p><p> At 500yds if I see a mirage with just a slight lift and estimate 8-10mph and hold 1.5 mil (with a 77gr 5.56) and end up with a either a 1 or 2 mil drift most people would assume "the wind is doing something downrange" or their initial wind call was wrong. </p><p> </p><p>And with the same round a 1mil drift is a 6mph wind, 2 mils is 15mph, So if you are learning to read mirage, or are well practiced but have some shots that show alot less/more drift than the wind should cause you either blame it on "shifting wind" or lose confidence in your ability to read mirage.</p><p></p><p> Wind is hard enough to learn and estimate properly, adding variable cant into the equation is just counterproductive. </p><p></p><p> Once you get past 300yds 5 degrees of cant is enough to be the difference between a hit and a miss on small targets or Varmints, and On large game its enough to be the difference between a clean kill dropping the animal in its tracks, or a shot that leaves the game wounded and running. </p><p></p><p> At 500yds and beyond 5 degrees of cant becomes 9"+ and certainly is enough to turn what would have been a clean kill onto a gutshot, superficial wound, or just a plain miss depending on the target and the way the rifle is canted. </p><p> </p><p> Past 1000yds 5 degrees of cant is 36"+ </p><p> </p><p></p><p> There are so many great levels that are affordable, and there are alot of them that you can drop over $100 on. So If you are serious about shooting you need a level.</p></blockquote><p></p>
[QUOTE="GBA1776, post: 1196931, member: 20522"] I think having a level is crucial for all types of shooting, even at relatively short range if you are shooting groups removing all variables is key, so if you have a variable cant ranging from 0-5 degrees you will have a variable horizontal shift on top of any wind. At 100yds in a full value 10mph wind you are only looking at .05-.3 Mil wind depending on the cartridge, with a 5 degree cant you may add .1 mil to the wind or subtract it. And having a .36" variable while shooting groups is not good. For example a 77gr 5.56 with a .362 BC in a full value 10mph wind only drifts .25" at 100yds, but having 5 degrees of cant on top of that can reduce that to .15" or increase it to .35" 5 degrees of cant will add .1 mil of drift for every 100yds in the direction of the cant. At 500yds the same 77gr 5.56 will drift 9" with a 5 degree cant. A full value 10mph wind for that round at 500yds needs a 1.5-1.6 mil correction, if I have a 5 degree cant, I will either add .5 mil to the wind or subtract it. At 500yds if I see a mirage with just a slight lift and estimate 8-10mph and hold 1.5 mil (with a 77gr 5.56) and end up with a either a 1 or 2 mil drift most people would assume "the wind is doing something downrange" or their initial wind call was wrong. And with the same round a 1mil drift is a 6mph wind, 2 mils is 15mph, So if you are learning to read mirage, or are well practiced but have some shots that show alot less/more drift than the wind should cause you either blame it on "shifting wind" or lose confidence in your ability to read mirage. Wind is hard enough to learn and estimate properly, adding variable cant into the equation is just counterproductive. Once you get past 300yds 5 degrees of cant is enough to be the difference between a hit and a miss on small targets or Varmints, and On large game its enough to be the difference between a clean kill dropping the animal in its tracks, or a shot that leaves the game wounded and running. At 500yds and beyond 5 degrees of cant becomes 9"+ and certainly is enough to turn what would have been a clean kill onto a gutshot, superficial wound, or just a plain miss depending on the target and the way the rifle is canted. Past 1000yds 5 degrees of cant is 36"+ There are so many great levels that are affordable, and there are alot of them that you can drop over $100 on. So If you are serious about shooting you need a level. [/QUOTE]
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Do you use a scope level to keep your rifle level?
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