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Hunting
Long Range Hunting & Shooting
Lost 100 fps after 550 rounds
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<blockquote data-quote="Jeff Heeg osoh" data-source="post: 2930940" data-attributes="member: 111250"><p>Just a few</p><p></p><p>Throat erosion from rounds fired, add a little powder to match speed.</p><p></p><p>Chrono reads different then original.</p><p></p><p>Not a fan of bore paste, in time can change overall diameter of the complete bore but if using leadcore bullets versus solids the leadcore will still expand and seal any gasses from blowing by.</p><p></p><p>Your powder may be slower now if it has increased in humidity inside the jug causing the burn rate to drop some thus causing slower speeds as well.</p><p></p><p>Or a slight combination of all above</p><p></p><p>Try adding a few 10ths of a grain and get your speed back where it was to check accuracy and pressure.</p><p></p><p>Osoh</p><p>JH</p></blockquote><p></p>
[QUOTE="Jeff Heeg osoh, post: 2930940, member: 111250"] Just a few Throat erosion from rounds fired, add a little powder to match speed. Chrono reads different then original. Not a fan of bore paste, in time can change overall diameter of the complete bore but if using leadcore bullets versus solids the leadcore will still expand and seal any gasses from blowing by. Your powder may be slower now if it has increased in humidity inside the jug causing the burn rate to drop some thus causing slower speeds as well. Or a slight combination of all above Try adding a few 10ths of a grain and get your speed back where it was to check accuracy and pressure. Osoh JH [/QUOTE]
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Lost 100 fps after 550 rounds
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