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Rifles, Reloading, Optics, Equipment
Reloading
.338 Lapua Mag. excessive case length ?
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<blockquote data-quote="805_Sniper" data-source="post: 482635" data-attributes="member: 31760"><p>I have been shooting the same .338 Lapua cases now for about 5-6 times without trimming the brass. I went to the range today and found that my groups started growing dramatically since they were fire formed. Trim length is recommended to be 2.714". Measuring the cases after I fired them, I noticed that the average length has grown to 2.737" and a couple rounds didn't allow the bolt to close easily. Will this cause excessive pressure spikes, and as a result have a significant impact on group sizes?</p></blockquote><p></p>
[QUOTE="805_Sniper, post: 482635, member: 31760"] I have been shooting the same .338 Lapua cases now for about 5-6 times without trimming the brass. I went to the range today and found that my groups started growing dramatically since they were fire formed. Trim length is recommended to be 2.714". Measuring the cases after I fired them, I noticed that the average length has grown to 2.737" and a couple rounds didn't allow the bolt to close easily. Will this cause excessive pressure spikes, and as a result have a significant impact on group sizes? [/QUOTE]
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Reloading
.338 Lapua Mag. excessive case length ?
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