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Rifles, Reloading, Optics, Equipment
Reloading
horizonal stringing
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<blockquote data-quote="Long Trang" data-source="post: 460990" data-attributes="member: 29049"><p>DaveWilson,</p><p> </p><p>Let's look at it this way. It's a brand new, out-of-the-box rifle...standard, not trued, tactical, or special in any way. Ok, at 100 yards, the rifle lays a string of 5 rounds that is approximately 1/2" in length. We're talking a hair over a 16th of an inch misplacement per shot and in the same direction. </p><p> </p><p>And, you may be correct; there could be a bit of stress on the barrel due to improper bedding, etc. But, the big clue here is the <em>consistant and compiled</em> effect on his POI. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> Each time he fired, the POI changed an <u>additional</u> 1/16th". That has got to be from thermal variations...fair enough...possibly combined with a wee bit of stress on the barrel.</p><p> </p><p>If the OP was to take the rifle out again...firing only after waiting a couple minutes per shot, he would be firing cold bore shots (eliminating any possibility of thermal shift) and should maintain a consistant zero. If so, then he'll know it's merely a thermal issue altering his harmonics. In that case, if this is to be used as a hunting rifle, he's going to be hunting cold bore anyway. So, he attains his zero (based on cold bore shots) and he's good to go.</p></blockquote><p></p>
[QUOTE="Long Trang, post: 460990, member: 29049"] DaveWilson, Let's look at it this way. It's a brand new, out-of-the-box rifle...standard, not trued, tactical, or special in any way. Ok, at 100 yards, the rifle lays a string of 5 rounds that is approximately 1/2" in length. We're talking a hair over a 16th of an inch misplacement per shot and in the same direction. And, you may be correct; there could be a bit of stress on the barrel due to improper bedding, etc. But, the big clue here is the [I]consistant and compiled[/I] effect on his POI. :) Each time he fired, the POI changed an [U]additional[/U] 1/16th". That has got to be from thermal variations...fair enough...possibly combined with a wee bit of stress on the barrel. If the OP was to take the rifle out again...firing only after waiting a couple minutes per shot, he would be firing cold bore shots (eliminating any possibility of thermal shift) and should maintain a consistant zero. If so, then he'll know it's merely a thermal issue altering his harmonics. In that case, if this is to be used as a hunting rifle, he's going to be hunting cold bore anyway. So, he attains his zero (based on cold bore shots) and he's good to go. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
horizonal stringing
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