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Rifles, Reloading, Optics, Equipment
Reloading
Looking for experience with 300wsm or 300 Win.
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<blockquote data-quote="Bart B" data-source="post: 1150614" data-attributes="member: 5302"><p>Larger cases shoot a given bullet faster for the same peak pressure. They also have less accurate barrel life. And their greater recoil during the time bullets go through the barrel makes them harder to shoot precisely.</p><p></p><p>Then add what I said in post 10.</p><p></p><p>That said, the .308 Norma Mag is virtually identical to the .30-.338 Win Mag and both were very popular and successful in long range bullseye and benchrest matches some years ago, but only when fired cases were properly full length sized. First, a full length die whose neck was .002" smaller than a loaded round's neck then sized again with a body die to squeeze the body down right in front of the belt. Otherwise, new cases shot virtually equal accuracy wise.</p><p></p><p>Here's SAAMI's specs on a bunch of cartridges. Use it to compare bullets, pressure and velocity across several.</p><p></p><p><a href="http://saami.org/specifications_and_information/specifications/Velocity_Pressure_CfR.pdf" target="_blank">http://saami.org/specifications_and_information/specifications/Velocity_Pressure_CfR.pdf</a></p></blockquote><p></p>
[QUOTE="Bart B, post: 1150614, member: 5302"] Larger cases shoot a given bullet faster for the same peak pressure. They also have less accurate barrel life. And their greater recoil during the time bullets go through the barrel makes them harder to shoot precisely. Then add what I said in post 10. That said, the .308 Norma Mag is virtually identical to the .30-.338 Win Mag and both were very popular and successful in long range bullseye and benchrest matches some years ago, but only when fired cases were properly full length sized. First, a full length die whose neck was .002" smaller than a loaded round's neck then sized again with a body die to squeeze the body down right in front of the belt. Otherwise, new cases shot virtually equal accuracy wise. Here's SAAMI's specs on a bunch of cartridges. Use it to compare bullets, pressure and velocity across several. [url]http://saami.org/specifications_and_information/specifications/Velocity_Pressure_CfR.pdf[/url] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Looking for experience with 300wsm or 300 Win.
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