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Rifles, Reloading, Optics, Equipment
Reloading
getting different OAL's each round?
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<blockquote data-quote="Kevin Thomas" data-source="post: 498455" data-attributes="member: 15748"><p>bigsal5353,</p><p> </p><p>Boss Hoss is perfectly correct here, the bullets themselves vary a bit in length. This is a natural result of the forming operation and has virtually no effect on how well the bullets shoot. When you're seating a bullet, it's being done (the actual seating) by the forward portion of the ogive, not the tip. The relationship of ogive to leade, or rifling, is what's critical to accuracy. The slight variation in length, which you'll see as variations in OAL from round to round does not play into this relationship. The flip side is, if you painstakingly adjust the die to achieve the exact same OAL on all your rounds, you've now created the variable that you needed to avoid. Make sense?</p><p> </p><p>Measure some of your bullets, and you'll see what I mean about the variation. Using a comparator, as has already been mentioned, will give you an entirely different view from just measuring the actual length of a bullet. With that done, just seat them normally, check the loaded rounds for ogive positioning via a comparator, and forget about the OAL.</p></blockquote><p></p>
[QUOTE="Kevin Thomas, post: 498455, member: 15748"] bigsal5353, Boss Hoss is perfectly correct here, the bullets themselves vary a bit in length. This is a natural result of the forming operation and has virtually no effect on how well the bullets shoot. When you're seating a bullet, it's being done (the actual seating) by the forward portion of the ogive, not the tip. The relationship of ogive to leade, or rifling, is what's critical to accuracy. The slight variation in length, which you'll see as variations in OAL from round to round does not play into this relationship. The flip side is, if you painstakingly adjust the die to achieve the exact same OAL on all your rounds, you've now created the variable that you needed to avoid. Make sense? Measure some of your bullets, and you'll see what I mean about the variation. Using a comparator, as has already been mentioned, will give you an entirely different view from just measuring the actual length of a bullet. With that done, just seat them normally, check the loaded rounds for ogive positioning via a comparator, and forget about the OAL. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
getting different OAL's each round?
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