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Rifles, Reloading, Optics, Equipment
Reloading
300 win mag 190 SMK load
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<blockquote data-quote="Bart B" data-source="post: 806129" data-attributes="member: 5302"><p>Back when the .300 Win Mag was popular for long range prone matches, folks shooting the winning scores with it used 67 to 68 grains of IMR4350. Sometimes RE17 was used with good results but I don't remember the charge weights.</p><p></p><p>Nobody used magnum primers for best accuracy; they were never as consistant as medium ones. Even mild ones such as the RWS 5341 gave excellent accuracy in several 30 caliber belted magnums with IMR4350; .308 Norma Mag, .30-.338 Win Mag. and others I now forget.</p><p></p><p>Powders slower than these may well produce higher velocities, but seldom the consistant accuracy, in my opinion.</p></blockquote><p></p>
[QUOTE="Bart B, post: 806129, member: 5302"] Back when the .300 Win Mag was popular for long range prone matches, folks shooting the winning scores with it used 67 to 68 grains of IMR4350. Sometimes RE17 was used with good results but I don't remember the charge weights. Nobody used magnum primers for best accuracy; they were never as consistant as medium ones. Even mild ones such as the RWS 5341 gave excellent accuracy in several 30 caliber belted magnums with IMR4350; .308 Norma Mag, .30-.338 Win Mag. and others I now forget. Powders slower than these may well produce higher velocities, but seldom the consistant accuracy, in my opinion. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 win mag 190 SMK load
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