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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
zeroing your scope
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<blockquote data-quote="wrad" data-source="post: 381292" data-attributes="member: 19441"><p>Thanks all, for your great advice. And Mr. 4x... what's so wrong with being anal? I love crunching numbers, and often spend an hour on the 'puter with data, charts & statistics <em>for each shot taken.</em> VLR shooting and reloading just gives me a great excuse to play with numbers in very dramatic & fun ways. Now you can see why I asked my original question.</p><p> </p><p>No, my gun won't have a 9' barrel. Look at it this way. If I put the chamber of my rifle over the 100 yd marker (accurately measured to 0.1" with survey instruments), and the real range is supposed to be from muzzle to target, then my muzzle (on a 34" barrel + brake) is about 3' too far forward, and I am really zeroeing at only 97'. On the other hand, if I put my muzzle exactly on the 100 yd mark, and the real range is supposed to be from the chamber to the target, then my chamber is 3' back from where it should be, or at 103'. So I get a +/- 6' range within which I could be off by up to 3'. </p><p> </p><p>I did go into my ballistics programs to see if it made a difference, and like several other friendly responders pointed out, the difference seemed to be nil. Being a newcomer to this game I was not confident that I was doing it right, but I guess I was. But back being anal, where I reside most comfortably (I'm an engineer), even if it doesn't make significant difference exactly where you put your gun on the mark when zeroing - THERE MUST BE A RULE OR CONVENTION ON IT ! And I hate feeling stupid about <em>anything</em>, but not knowing were to put my gun when zeroing is just too <strong>stressful</strong>. If there isn't a rule, heck - let's make one.</p></blockquote><p></p>
[QUOTE="wrad, post: 381292, member: 19441"] Thanks all, for your great advice. And Mr. 4x... what's so wrong with being anal? I love crunching numbers, and often spend an hour on the 'puter with data, charts & statistics [I]for each shot taken.[/I] VLR shooting and reloading just gives me a great excuse to play with numbers in very dramatic & fun ways. Now you can see why I asked my original question. No, my gun won't have a 9' barrel. Look at it this way. If I put the chamber of my rifle over the 100 yd marker (accurately measured to 0.1" with survey instruments), and the real range is supposed to be from muzzle to target, then my muzzle (on a 34" barrel + brake) is about 3' too far forward, and I am really zeroeing at only 97'. On the other hand, if I put my muzzle exactly on the 100 yd mark, and the real range is supposed to be from the chamber to the target, then my chamber is 3' back from where it should be, or at 103'. So I get a +/- 6' range within which I could be off by up to 3'. I did go into my ballistics programs to see if it made a difference, and like several other friendly responders pointed out, the difference seemed to be nil. Being a newcomer to this game I was not confident that I was doing it right, but I guess I was. But back being anal, where I reside most comfortably (I'm an engineer), even if it doesn't make significant difference exactly where you put your gun on the mark when zeroing - THERE MUST BE A RULE OR CONVENTION ON IT ! And I hate feeling stupid about [I]anything[/I], but not knowing were to put my gun when zeroing is just too [B]stressful[/B]. If there isn't a rule, heck - let's make one. [/QUOTE]
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