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<blockquote data-quote="el matador" data-source="post: 1322438" data-attributes="member: 12193"><p>Looking at your data we can calculate a total error of between 2.2% and 3.8% with an average of around 3%. Even the low number of 2.2% is higher than I would like to see in a high-end scope. Here's an article that talks about how to measure the distance accurately and a comparison of some expensive scopes: <a href="http://precisionrifleblog.com/2014/08/13/tactical-scopes-mechanical-performance-part-1/" target="_blank">Tactical Scopes: Mechanical Performance Part 1 - PrecisionRifleBlog.com</a></p><p></p><p>Interesting that the Vortex Razor was among the worst he tested, with an error of 1.1%. It would be easy to induce a bit more error if the 100 yard measurement was not exact, since 1 yard would equal 1% of error. </p><p></p><p>If you're certain you were exactly 100 yards away and your marksmanship was spot on then the scope is probably to blame. You could send it in to be repaired or replaced, or just use a ballistic calculator that can adjust for it. Most of the good ballistic apps these days have a place to enter correction factors for elevation and windage.</p></blockquote><p></p>
[QUOTE="el matador, post: 1322438, member: 12193"] Looking at your data we can calculate a total error of between 2.2% and 3.8% with an average of around 3%. Even the low number of 2.2% is higher than I would like to see in a high-end scope. Here's an article that talks about how to measure the distance accurately and a comparison of some expensive scopes: [url=http://precisionrifleblog.com/2014/08/13/tactical-scopes-mechanical-performance-part-1/]Tactical Scopes: Mechanical Performance Part 1 - PrecisionRifleBlog.com[/url] Interesting that the Vortex Razor was among the worst he tested, with an error of 1.1%. It would be easy to induce a bit more error if the 100 yard measurement was not exact, since 1 yard would equal 1% of error. If you're certain you were exactly 100 yards away and your marksmanship was spot on then the scope is probably to blame. You could send it in to be repaired or replaced, or just use a ballistic calculator that can adjust for it. Most of the good ballistic apps these days have a place to enter correction factors for elevation and windage. [/QUOTE]
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