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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Parallax Question??
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<blockquote data-quote="SBruce" data-source="post: 725067" data-attributes="member: 21068"><p><span style="color: black">Heavy triggers can cause misalignment when the shot breaks. Competition shooters who are after ultimate precision generally use triggers that are anywhere from 1.5 oz. to 1 lb. Not saying you need to do this, but lighter crisper pulls do certainly help. Be careful not to toque the grip when firing.</span></p><p> </p><p><span style="color: black">Sounds like you did all that we as shooters can do when it comes to scope mounting. Only a machinist/gunsmith or someone with specialized measuring tools can determine if the scope is mounted a few degrees off of top dead center or pointed at a slightly different azimuth. Most of use use an ACI or ACD level to insure that we're still holding the reticle level with gravity when firing the gun. Do you have one of those?</span></p><p> </p><p><span style="color: black">Parallax shows up best on highest power unfortunately. It really is best to use the highest power unless the heat waves and mirage are giving you grief. I am not saying that you couldn't shoot just fine on 14X, but for group testing and such I always use max power............."we can only shoot as good as we can see" type of thing. Parallax is tougher to dial out if we can't see it as well. Which is what happens on lower powers IMO, it's still there, we just don't see it.</span></p><p> </p><p><span style="color: black">Were you seeing mirage and heat waves when it warmed up to 50? I've seen ground mirage throw off poi by a full moa at 300. Granted, it was very bad mirage, but it darn sure happened. The temperature alone should not have that much effect on bullet trajectory at 300. Combination of cold dense air, cold ammo vs warmer lighter air and warmer ammo and possibly heat waves would certainly be enough in some cases for 1/2 moa at 300 though.</span></p><p> </p><p>Hopefully with a couple more range sessions you'll have the bugs worked out. Remember, if nothing else you can always sight in your windage to be dead on at 300/400 yds (on a calm day of course).</p></blockquote><p></p>
[QUOTE="SBruce, post: 725067, member: 21068"] [COLOR=black]Heavy triggers can cause misalignment when the shot breaks. Competition shooters who are after ultimate precision generally use triggers that are anywhere from 1.5 oz. to 1 lb. Not saying you need to do this, but lighter crisper pulls do certainly help. Be careful not to toque the grip when firing.[/COLOR] [COLOR=black]Sounds like you did all that we as shooters can do when it comes to scope mounting. Only a machinist/gunsmith or someone with specialized measuring tools can determine if the scope is mounted a few degrees off of top dead center or pointed at a slightly different azimuth. Most of use use an ACI or ACD level to insure that we're still holding the reticle level with gravity when firing the gun. Do you have one of those?[/COLOR] [COLOR=black]Parallax shows up best on highest power unfortunately. It really is best to use the highest power unless the heat waves and mirage are giving you grief. I am not saying that you couldn't shoot just fine on 14X, but for group testing and such I always use max power............."we can only shoot as good as we can see" type of thing. Parallax is tougher to dial out if we can't see it as well. Which is what happens on lower powers IMO, it's still there, we just don't see it.[/COLOR] [COLOR=black]Were you seeing mirage and heat waves when it warmed up to 50? I've seen ground mirage throw off poi by a full moa at 300. Granted, it was very bad mirage, but it darn sure happened. The temperature alone should not have that much effect on bullet trajectory at 300. Combination of cold dense air, cold ammo vs warmer lighter air and warmer ammo and possibly heat waves would certainly be enough in some cases for 1/2 moa at 300 though.[/COLOR] Hopefully with a couple more range sessions you'll have the bugs worked out. Remember, if nothing else you can always sight in your windage to be dead on at 300/400 yds (on a calm day of course). [/QUOTE]
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Parallax Question??
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