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Hunting
Long Range Hunting & Shooting
Bullet lube when seating?
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<blockquote data-quote="Greyfox" data-source="post: 869696" data-attributes="member: 10291"><p>I will lube both inside and outside the necks of new brass(particularly Lapua), and my annealed brass for the first load. Annealing clearly effects the surface composition of the brass, increasing seating pressure or expanding pressure if I have to bring the neck size up with new brass, perhaps this is oxide/crystal formation. This can also scratch the neck dye if no lube is used. Once fired, this effect disappears. Several years ago I tested lubed vs unlubed reloads with my competition rifles and found no difference in accuracy, velocity, ES, or runout of either the case neck, or the bullet of a prepared,1x+ fired case. This assumes that the neck is sized approximately .002" smaller than the bullet and non-moly coated bullets. I did find that lubing the bullet or the inside of the case neck increased the chance of bullet setback with rounds loaded in the magazine with some of my rifles/cartridges used in multiple shot competitive shooting, or when hunting with rounds in the magazine.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 869696, member: 10291"] I will lube both inside and outside the necks of new brass(particularly Lapua), and my annealed brass for the first load. Annealing clearly effects the surface composition of the brass, increasing seating pressure or expanding pressure if I have to bring the neck size up with new brass, perhaps this is oxide/crystal formation. This can also scratch the neck dye if no lube is used. Once fired, this effect disappears. Several years ago I tested lubed vs unlubed reloads with my competition rifles and found no difference in accuracy, velocity, ES, or runout of either the case neck, or the bullet of a prepared,1x+ fired case. This assumes that the neck is sized approximately .002" smaller than the bullet and non-moly coated bullets. I did find that lubing the bullet or the inside of the case neck increased the chance of bullet setback with rounds loaded in the magazine with some of my rifles/cartridges used in multiple shot competitive shooting, or when hunting with rounds in the magazine. [/QUOTE]
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Bullet lube when seating?
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