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The Range
Ammo & Reloading
Help with 308 load
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<blockquote data-quote="swampratt" data-source="post: 4243620" data-attributes="member: 15054"><p>One other thing my buddy was doing was making all his loaded rounds the same length.</p><p>But in order to do this he changed the seating die to make the base to nose the same.</p><p></p><p>The noses get dinked up in shipping and the OAL of the loaded round will many times be a little mixed.</p><p>You know not to change the seating die.</p><p></p><p>Another thing is some dies the seating stem will contact the very tip of the bullet and push there.</p><p>That is not good you need to drill the seating stem deeper to keep those pointy bullet tips from bottoming out.</p><p></p><p>Speaking of shoulders on brass.</p><p></p><p>If your noticing some cases are harder to size than others or harder to extract from the sizing die then you will have variance in where the shoulder is at and that will hurt groups.</p><p></p><p>Lube in the case neck will hurt groups also.</p><p>I Qtip it out and brush necks with nylon brush before and after sizing.</p><p></p><p>I have tested so many things in the reloading area it is not even funny.</p><p></p><p>I have made many awesome loads without a chrony.</p><p>Some say you need it.</p><p>But I have seen where 3 consecutive rounds had the same exact velocity but shot a 3" group.</p><p>Just not in a good node.</p></blockquote><p></p>
[QUOTE="swampratt, post: 4243620, member: 15054"] One other thing my buddy was doing was making all his loaded rounds the same length. But in order to do this he changed the seating die to make the base to nose the same. The noses get dinked up in shipping and the OAL of the loaded round will many times be a little mixed. You know not to change the seating die. Another thing is some dies the seating stem will contact the very tip of the bullet and push there. That is not good you need to drill the seating stem deeper to keep those pointy bullet tips from bottoming out. Speaking of shoulders on brass. If your noticing some cases are harder to size than others or harder to extract from the sizing die then you will have variance in where the shoulder is at and that will hurt groups. Lube in the case neck will hurt groups also. I Qtip it out and brush necks with nylon brush before and after sizing. I have tested so many things in the reloading area it is not even funny. I have made many awesome loads without a chrony. Some say you need it. But I have seen where 3 consecutive rounds had the same exact velocity but shot a 3" group. Just not in a good node. [/QUOTE]
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