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Rifles, Reloading, Optics, Equipment
Reloading
Best case trimmer??
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<blockquote data-quote="Mc Fraser" data-source="post: 2055581" data-attributes="member: 106529"><p>Interesting! Just so we are on the same page, I'm not implying anything, we are discussing trimming operations, in theory. </p><p>I'm attaching a picture so we can compare apples to apples. My goal is to have a consistent case length, not only from head to case mouth but also consistent neck, shoulder and body length. In my opinion, a FL die in theory will take care of the head to shoulder length, while a trimmer that indexes on the shoulder will take care of the neck length. With these two operations, in theory, and ignoring other external factors, the reloader will have consistent case dimensions - head to shoulder and neck length. With that in mind, a trimmer that indexes on the shoulder will yield consistent neck lengths. </p><p>Now, a trimmer that indexes on the head could potentially induce neck length errors if the FL die does not size consistently. Let's assume for a second that the FL die tolerance is +- 1 thou, then it does not matter how "perfect" or "my trimmer does a great job" your trimmer is, that inconsistency will be carried over. We all know that any tool will have a tolerance therefore your neck length at the time of trimming can be very inconsistent. How much it depends on the added tolerance from each operation. </p><p>Does it matter in real life? To me yes, for other nope.</p><p>I want consistent neck length on all my cases, and as far as I know, the only way to do it is with a trimmer that indexes on the shoulder. </p><p>I can't comment on the Wilson trimmer, I cant tell from the pictures if the case holder serves just as a centralized or it is machined to stop the case on the shoulder.</p><p></p><p>Does that make sense?</p></blockquote><p></p>
[QUOTE="Mc Fraser, post: 2055581, member: 106529"] Interesting! Just so we are on the same page, I'm not implying anything, we are discussing trimming operations, in theory. I'm attaching a picture so we can compare apples to apples. My goal is to have a consistent case length, not only from head to case mouth but also consistent neck, shoulder and body length. In my opinion, a FL die in theory will take care of the head to shoulder length, while a trimmer that indexes on the shoulder will take care of the neck length. With these two operations, in theory, and ignoring other external factors, the reloader will have consistent case dimensions - head to shoulder and neck length. With that in mind, a trimmer that indexes on the shoulder will yield consistent neck lengths. Now, a trimmer that indexes on the head could potentially induce neck length errors if the FL die does not size consistently. Let's assume for a second that the FL die tolerance is +- 1 thou, then it does not matter how "perfect" or "my trimmer does a great job" your trimmer is, that inconsistency will be carried over. We all know that any tool will have a tolerance therefore your neck length at the time of trimming can be very inconsistent. How much it depends on the added tolerance from each operation. Does it matter in real life? To me yes, for other nope. I want consistent neck length on all my cases, and as far as I know, the only way to do it is with a trimmer that indexes on the shoulder. I can't comment on the Wilson trimmer, I cant tell from the pictures if the case holder serves just as a centralized or it is machined to stop the case on the shoulder. Does that make sense? [/QUOTE]
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Best case trimmer??
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