allthegearandnoidea Posted October 13, 2009 Report Share Posted October 13, 2009 Ah, I see. That makes sense. Just checking a ballistic spreadsheet I have and 1" high at 100 yards means a bullet will hit within a +/- 1" anywhere out to 200 yards. Quote Link to comment Share on other sites More sharing options...
garyb Posted October 13, 2009 Author Report Share Posted October 13, 2009 It's far from perfect yet.... I'll try upping the velocity a tad and see if I can't bring the gap down some more Shooting at a target 200 yards away, when you've just walked 400 yards in fresh plough, isn't the greatest for steady rifle shooting :blink: Quote Link to comment Share on other sites More sharing options...
Beardo Posted October 13, 2009 Report Share Posted October 13, 2009 by my calculations the first point of zero is about 50 yards (obviously this depends on the load) - so if you zero at 50, it's 1" high at 100, zero again at 180. so a 50 yards zero this afternoon it is - i'll check the results and report back Quote Link to comment Share on other sites More sharing options...
garyb Posted October 13, 2009 Author Report Share Posted October 13, 2009 Nick, please zero at 50, and then try 100, and 100 + I'd like to see the targets :blink: Quote Link to comment Share on other sites More sharing options...
Beardo Posted October 13, 2009 Report Share Posted October 13, 2009 it'd probably need a tweak, but it's a good start Quote Link to comment Share on other sites More sharing options...
henry d Posted October 13, 2009 Report Share Posted October 13, 2009 Well I have just tried at 200 with a 1-1/2" high zero @ 100 and it is approx.1-1/4" high :blink: This was prone with just a bipod and into my shoulder, I am seriously going to have to have a day working this one out using sandbags ! And I now know why I missed the 200yd fox over the top ! Quote Link to comment Share on other sites More sharing options...
al4x Posted October 13, 2009 Report Share Posted October 13, 2009 might it depend on scope height Quote Link to comment Share on other sites More sharing options...
garyb Posted October 13, 2009 Author Report Share Posted October 13, 2009 Not forgetting load velocity and weight of projectile.. There are many many factors infact... My inability to accurately pace 100 or 200 yards - may well be most of it :blink: Quote Link to comment Share on other sites More sharing options...
Beardo Posted October 13, 2009 Report Share Posted October 13, 2009 just been out to zero the Swarovski with the Titan and test the 50 yards zero. couldn't get a nice 200 yard range with a safe backstop as they've just sown the field i normally use. so couldn't test beyond 100 yards unfortunately. but.... 50 yard zero using Israeli Military Industries 'Samson' 55gr hollowpoints .223 (touching holes group) produced 3/4" high at 100 yards (1/2" group off the roof of the Frontera which is a bit bouncy) so gotta tweak it a couple of yards back i think - 45 yards or so to get the 1" high 100 yards. took the shotgun as well and managed 12 pigeons at the same time in between rifle shots! :blink: Quote Link to comment Share on other sites More sharing options...
Dave-G Posted October 13, 2009 Report Share Posted October 13, 2009 Ah, I see. That makes sense. Just checking a ballistic spreadsheet I have and 1" high at 100 yards means a bullet will hit within a +/- 1" anywhere out to 200 yards. It's easier to see the bullet hole at 100 yards through the scope than the actual point of impact at the point of aim - near enough for zeroing purposes if hunting and you know your trajectories. If you want to be fussy you can then walk down range to fine adjust it to the longer distance but wind may then be shifting it a tad. Quote Link to comment Share on other sites More sharing options...
Beardo Posted October 13, 2009 Report Share Posted October 13, 2009 (edited) here's the paper from earlier.. grid is 1/2", circles 1" Edited October 13, 2009 by nickbeardo Quote Link to comment Share on other sites More sharing options...
Catamong Posted October 13, 2009 Report Share Posted October 13, 2009 Not forgetting load velocity and weight of projectile.. There are many many factors infact... My inability to accurately pace 100 or 200 yards - may well be most of it :unsure: Hmmm, All this serious techy talk goes right over my head. Hopefully we'll find out just how accurately the gun shoots tomorrow night if we catch up with "Ole Charlie"..?? Bring plenty of ammo. Cat. Quote Link to comment Share on other sites More sharing options...
game_boy Posted March 28, 2010 Report Share Posted March 28, 2010 Looking to try this this with 100gn Federal Power Shock with a muzzle velocity of 2960 fps. What would my first zero point be in order to get the 1 inch high @ 100yrds be ?? Quote Link to comment Share on other sites More sharing options...
Dekers Posted March 28, 2010 Report Share Posted March 28, 2010 I like this site.... http://www.biggameinfo.com/index.aspx?&...%2fbalcalc.ascx Nothing is 100% but I find it a pretty reasonable starting point!! Quote Link to comment Share on other sites More sharing options...
game_boy Posted March 28, 2010 Report Share Posted March 28, 2010 I'm not sure what to put in for the other fields though? Quote Link to comment Share on other sites More sharing options...
Beardo Posted March 28, 2010 Report Share Posted March 28, 2010 still going to be about 45-50 yards Quote Link to comment Share on other sites More sharing options...
game_boy Posted March 28, 2010 Report Share Posted March 28, 2010 Cheers Quote Link to comment Share on other sites More sharing options...
wymberley Posted March 28, 2010 Report Share Posted March 28, 2010 Looking to try this this with 100gn Federal Power Shock with a muzzle velocity of 2960 fps. What would my first zero point be in order to get the 1 inch high @ 100yrds be ?? Hi, answered your PM before I saw your post, so it's just the sight height that's in doubt. Cheers Quote Link to comment Share on other sites More sharing options...
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