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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cronograph's ??
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<blockquote data-quote="Trickymissfit" data-source="post: 780307" data-attributes="member: 25383"><p>at one time I had two steel rods that would clamp onto the chrongraph's nounting plate (light bar). Each one had a small round ball threaded onto the end. Simple and crude but it worked for aligning the chronograph. Later on I used the same method I use for bucking in a laser, and this actually took longer to do than the older method. The idea of printing out a grid setup on clear acetate (you need a laser printer) sounds like a much easier idea todo. I like for the bore center to be about 6" above the cells during travel as the bullet will climb as it travels thru the chronograph, and not down. At the range I drove gutter spikes into the ground out front of the bench. (I think I have five of them out there now on five different lanes. This makes the distance thing easier to measure as your already there. I carry to torpedo levels with me in the box, and this makes things go much quicker.</p><p> </p><p>I rarely get a no read on a shot (maybe six or eight total as long as I've had the unit). My ES is more often very tight (often around seven to eight). The idea of using a laser bore sighter is probably as good of an idea as I've heard over the years. </p><p> </p><p>I have an idea on how to find out if said chronograph is accurate (it it will read low enough) using one of the few constants that never changes. But have not tried it out, let alone took the time to figure the correct velocity before checking it out.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 780307, member: 25383"] at one time I had two steel rods that would clamp onto the chrongraph's nounting plate (light bar). Each one had a small round ball threaded onto the end. Simple and crude but it worked for aligning the chronograph. Later on I used the same method I use for bucking in a laser, and this actually took longer to do than the older method. The idea of printing out a grid setup on clear acetate (you need a laser printer) sounds like a much easier idea todo. I like for the bore center to be about 6" above the cells during travel as the bullet will climb as it travels thru the chronograph, and not down. At the range I drove gutter spikes into the ground out front of the bench. (I think I have five of them out there now on five different lanes. This makes the distance thing easier to measure as your already there. I carry to torpedo levels with me in the box, and this makes things go much quicker. I rarely get a no read on a shot (maybe six or eight total as long as I've had the unit). My ES is more often very tight (often around seven to eight). The idea of using a laser bore sighter is probably as good of an idea as I've heard over the years. I have an idea on how to find out if said chronograph is accurate (it it will read low enough) using one of the few constants that never changes. But have not tried it out, let alone took the time to figure the correct velocity before checking it out. gary [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Cronograph's ??
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