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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Accuracy loss - Coppering?/ Primers? / Help!
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<blockquote data-quote="Centre Punch" data-source="post: 37304" data-attributes="member: 3048"><p>BROWN DOG:I would suggest you have a rather stout load of N165.If your load duplicates or is approaching factory ballistics you could have extreme pressures which would not neccessaraly show itself in the usual way. In February i worked up a load for my 243 using a 90 grn Lapua Scenar.Loaded with the max charge of H4350, it was superbly accurate. On using the same load on a warm September day, by midday bolt lift was getting heavy and the ejector plunger was not throwing the cases clear. After 5 more rounds accuracy was 3" and the case head facees were scored. Fouling removal took 11hrs of 15min soaks and scrubbing out with shooters choice copper remover. I would suggest a lighter charge of a faster powder, the slower powders being more suitable for the heaviest bullets. With all your fouling removed your accuracy will be restored, but it might be a lot of work. </p><p></p><p>PS. "****ed off" is an english term, where are you?</p><p></p><p>Good Hunting.</p></blockquote><p></p>
[QUOTE="Centre Punch, post: 37304, member: 3048"] BROWN DOG:I would suggest you have a rather stout load of N165.If your load duplicates or is approaching factory ballistics you could have extreme pressures which would not neccessaraly show itself in the usual way. In February i worked up a load for my 243 using a 90 grn Lapua Scenar.Loaded with the max charge of H4350, it was superbly accurate. On using the same load on a warm September day, by midday bolt lift was getting heavy and the ejector plunger was not throwing the cases clear. After 5 more rounds accuracy was 3" and the case head facees were scored. Fouling removal took 11hrs of 15min soaks and scrubbing out with shooters choice copper remover. I would suggest a lighter charge of a faster powder, the slower powders being more suitable for the heaviest bullets. With all your fouling removed your accuracy will be restored, but it might be a lot of work. PS. "****ed off" is an english term, where are you? Good Hunting. [/QUOTE]
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Accuracy loss - Coppering?/ Primers? / Help!
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