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Rifles, Reloading, Optics, Equipment
Reloading
Reloading 300 Win Mag
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<blockquote data-quote="chuckmaster" data-source="post: 2114871" data-attributes="member: 23792"><p>EE_Reloader I understand your concerns and worries of the belt bump, as I had these same fears when I first started researching on this caliber. I use Norma brass and have 6 reloads on this brass and have not had one issue. I would safe my money on the Willis die and spend the money on a good set of dies. I typically use Redding Competition dies, but bought the Forster Bushing Bump Neck Sizing die for the 300 Win Mag. I haven't tried any H4350 or H4831, but can tell you the my Cooper really likes 168gr SMK with H4831SC and 208gr Hornady with H1000 and Retumbo. The velocity on the Retumbo is insane! I didn't a lot of testing with primers and found that Fed Mag Match gives best consistency and results.</p><p>I won the Cooper Long Rand Open Country at the Cooper One Shot East competition in 2019. I always wanted a 300 Win Mag, but never could justify in buying one. Cooper guarantees that all their guns will shoot .500" groups at 100yds. I can tell you that I have achieved some really great groups with the 208gr bullets, the best being .098" on a 4 shot group at 200yds. That's a .406 hole minus the .308. Good luck !</p></blockquote><p></p>
[QUOTE="chuckmaster, post: 2114871, member: 23792"] EE_Reloader I understand your concerns and worries of the belt bump, as I had these same fears when I first started researching on this caliber. I use Norma brass and have 6 reloads on this brass and have not had one issue. I would safe my money on the Willis die and spend the money on a good set of dies. I typically use Redding Competition dies, but bought the Forster Bushing Bump Neck Sizing die for the 300 Win Mag. I haven't tried any H4350 or H4831, but can tell you the my Cooper really likes 168gr SMK with H4831SC and 208gr Hornady with H1000 and Retumbo. The velocity on the Retumbo is insane! I didn't a lot of testing with primers and found that Fed Mag Match gives best consistency and results. I won the Cooper Long Rand Open Country at the Cooper One Shot East competition in 2019. I always wanted a 300 Win Mag, but never could justify in buying one. Cooper guarantees that all their guns will shoot .500" groups at 100yds. I can tell you that I have achieved some really great groups with the 208gr bullets, the best being .098" on a 4 shot group at 200yds. That's a .406 hole minus the .308. Good luck ! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Reloading 300 Win Mag
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