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Rifles, Reloading, Optics, Equipment
Reloading
338-300 wsm questions.
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<blockquote data-quote="J E Custom" data-source="post: 1718447" data-attributes="member: 2736"><p>The problem with the short mags is their case capacity is around 60 to 65 grains max and the 338 Win Mag is close to 10 more grains capacity. so it is very hard for the short mags to even come close to the Win Mag with heavy bullets unless you over pressure them.</p><p></p><p>I recommend 90 to 100 % case density on any cartridge with powder that Meets SAMMI pressures at 100% densities. Any more pressures at 100% means the powder is to fast.</p><p>any less and it is slow. With a drop tube, i can get 103 or 104% densities and still be within range with reasonable pressures.</p><p></p><p>Even though most re loading manuals are conservative, they can help in choosing the best powder for that cartridge if you study the velocity produced with each type and weight of powder and at what point it becomes compressed.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1718447, member: 2736"] The problem with the short mags is their case capacity is around 60 to 65 grains max and the 338 Win Mag is close to 10 more grains capacity. so it is very hard for the short mags to even come close to the Win Mag with heavy bullets unless you over pressure them. I recommend 90 to 100 % case density on any cartridge with powder that Meets SAMMI pressures at 100% densities. Any more pressures at 100% means the powder is to fast. any less and it is slow. With a drop tube, i can get 103 or 104% densities and still be within range with reasonable pressures. Even though most re loading manuals are conservative, they can help in choosing the best powder for that cartridge if you study the velocity produced with each type and weight of powder and at what point it becomes compressed. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
338-300 wsm questions.
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