labrador Posted February 2, 2009 Report Share Posted February 2, 2009 if a .22 with an 18 inch barrel was zereod with eley subs at 25 yards how high would you have to aim to hit the targt at 60 yards Quote Link to comment Share on other sites More sharing options...
magman Posted February 2, 2009 Report Share Posted February 2, 2009 Try it and find out Quote Link to comment Share on other sites More sharing options...
labrador Posted February 2, 2009 Author Report Share Posted February 2, 2009 just thought i would ask because the weather is getting to bad to shoot at the target at the moment just wondered if anyone knew? Quote Link to comment Share on other sites More sharing options...
magman Posted February 2, 2009 Report Share Posted February 2, 2009 Even if you got an answer to your question you should find out for yourself as each rifle will be different Quote Link to comment Share on other sites More sharing options...
Paul223 Posted February 2, 2009 Report Share Posted February 2, 2009 (edited) http://www.eskimo.com/~jbm/cgi-bin/jbmtraj-5.0.cgi eley subs ballistic coefficient is 0.115, muzzle velocity of 1065 bullet weight 40 grains Edited February 2, 2009 by Paul223 Quote Link to comment Share on other sites More sharing options...
Dave-G Posted February 3, 2009 Report Share Posted February 3, 2009 I'll stick my neck out and say aim on target if your setting up your scope. At 25 yards the bullet is still rising relative to the scope - which will have differering results at various heights above the barrel. The bullet will again pass zero somewhere not very far away from 60 yards on its downward trajectory. This is the primary zero. In fact you'll often find advice to initially zero at about 25 yards when setting up a new scope. Quote Link to comment Share on other sites More sharing options...
hyflier Posted February 3, 2009 Report Share Posted February 3, 2009 I would wind the scope up 8 clicks taking your adjustment to be 1 click = 1/4" at 100 yards. (So it would be 1/16" at 25 yards.) The Lee enfield No8 rifle requires 2 clicks up from 25 to 50 yards (the adjustment on THIS rifle is 1 click = 1/4" at 25 yards.) Hope this helps a bit Quote Link to comment Share on other sites More sharing options...
MC Posted February 3, 2009 Report Share Posted February 3, 2009 A .22 bullet zeroed at 15 yards is alomost bang on at 50 yards. so it would almost be the same 25 to 60 yards. If you zeroed at 50 yards then the drop to 100 is about 7" but as previously said you need to go and try it. Quote Link to comment Share on other sites More sharing options...
labrador Posted February 3, 2009 Author Report Share Posted February 3, 2009 thanks guys i will be out assoon as the weather calms down a bit Quote Link to comment Share on other sites More sharing options...
Paul223 Posted February 3, 2009 Report Share Posted February 3, 2009 this all depends on the scope hight ( to center) above the center line of the barrel, the calculations page will work it all out as near as, but practice is the only real way to find out, the calculation page can be set to scope height, max distance and increments of say 5 yards, zero range, I've already posted up the other info you need, you can even print off a range card for future use have a play :blink: Quote Link to comment Share on other sites More sharing options...
bruno22rf Posted February 3, 2009 Report Share Posted February 3, 2009 Im afraid i dont understand the relevance to scope height-lets assume, for arguments sake, that we pop said rifle into our trusty black & decker workmate and ,after putting our targets at 25 and 60 yards, we then tinker with the clamped rifle until it hits the bull at the first target.No matter at what height you then place a scope and adjust the crosshairs to the bullet strike point-the bullet will still hit the bull on the furthest target.Surely the only variations are caused by the bullet velocity and their various trajectory paths? :blink: Quote Link to comment Share on other sites More sharing options...
Paul223 Posted February 3, 2009 Report Share Posted February 3, 2009 Quite simple really, if the line of sight was say an exaggerated 5 inch higher than the center of the barrel then the angle that the bullet would take to intersect the sight would be more exaggerated too, leaving a long period in between ( as in yards) before the bullet would again cross the line of sight, on its way down if you like, if that makes sense ? Quote Link to comment Share on other sites More sharing options...
Dave-G Posted February 4, 2009 Report Share Posted February 4, 2009 Im afraid i dont understand the relevance to scope height-lets assume, for arguments sake, that we pop said rifle into our trusty black & decker workmate and ,after putting our targets at 25 and 60 yards, we then tinker with the clamped rifle until it hits the bull at the first target.No matter at what height you then place a scope and adjust the crosshairs to the bullet strike point-the bullet will still hit the bull on the furthest target.Surely the only variations are caused by the bullet velocity and their various trajectory paths? :blink: In real life your average scope will probably have a 44~50mm objective lens centre at about 2" above the centre of your barrel, so the "other" (primary) zero will be at about 48 yards. Here are two extreme examples of scope height regarding the view of the bullet as it passes the crosshairs on its path through your 25 yard zero till it is again seen in the crosshairs. Note the different scope heights used Just consider the red line as the bullet path. Ignore the other colour lines unless you propose to use one of the scopes this free program was designed for. Credit for these images is due to Hawke optics. Quote Link to comment Share on other sites More sharing options...
Paul223 Posted February 4, 2009 Report Share Posted February 4, 2009 Top man Dave, makes it very easy to understand, 1 inch difference in scope height 20 odd yards on the second zero :blink: Quote Link to comment Share on other sites More sharing options...
THEINVISIBLESCARECROW Posted February 6, 2009 Report Share Posted February 6, 2009 For me, zero at 60yds, spot on allso at 20yds, just under 2 milldots down at 115yds. Quote Link to comment Share on other sites More sharing options...
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