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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Borescope-should one use one,which,why?
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<blockquote data-quote="AZShooter" data-source="post: 1320334" data-attributes="member: 5219"><p>I have a hawkeye and use it often. I use it for the usual things mentioned earlier. I also look into cartridges. Incipient case separation can be seen. Ever wonder what primer was in a case? You can get close and see the color to confirm. JE Custom is correct there is no other way to truly know the condition of the crown. </p><p></p><p>Quite a few guys at the have suffered accuracy loss with their favorite hunting rifles and have asked me to take a look with the scope. Several of those rifles were terribly fouled. I can tell you small copper "speed bumps" in the bore will cause a pet rifle to shoot large groups. </p><p></p><p>Using the scope has told me what is required to clean a hand lapped custom or factory barrel. </p><p></p><p>A friend recently bought a lyman borescope. I was impressed with the quality of the pictures he e-mailed to me. He had a question about the condition of his bore, said he couldn't get it clean. The barrel had a few large low areas that looked like fouling but was not. They were old fouled areas that eroded away leaving large pot holes. I have a 308 like that yet shoots very tight groups, so the earlier poster that said let it tell you if it shoots or not is very correct. </p><p></p><p>The 90 degree view can fool you into thinking something is higher when it is actually lower than its surroundings. Sometimes I have to really look carefully at a handlapped barrel to tell the lands from the grooves. </p><p></p><p>Once you own a borescope you will not be able to do without one.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 1320334, member: 5219"] I have a hawkeye and use it often. I use it for the usual things mentioned earlier. I also look into cartridges. Incipient case separation can be seen. Ever wonder what primer was in a case? You can get close and see the color to confirm. JE Custom is correct there is no other way to truly know the condition of the crown. Quite a few guys at the have suffered accuracy loss with their favorite hunting rifles and have asked me to take a look with the scope. Several of those rifles were terribly fouled. I can tell you small copper "speed bumps" in the bore will cause a pet rifle to shoot large groups. Using the scope has told me what is required to clean a hand lapped custom or factory barrel. A friend recently bought a lyman borescope. I was impressed with the quality of the pictures he e-mailed to me. He had a question about the condition of his bore, said he couldn't get it clean. The barrel had a few large low areas that looked like fouling but was not. They were old fouled areas that eroded away leaving large pot holes. I have a 308 like that yet shoots very tight groups, so the earlier poster that said let it tell you if it shoots or not is very correct. The 90 degree view can fool you into thinking something is higher when it is actually lower than its surroundings. Sometimes I have to really look carefully at a handlapped barrel to tell the lands from the grooves. Once you own a borescope you will not be able to do without one. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Borescope-should one use one,which,why?
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