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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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<blockquote data-quote="yobuck" data-source="post: 1487981" data-attributes="member: 12443"><p>True 30 years ago, especially with the larger cases like the 30x378 Wby which was then a wildcat. Very few powder selections were available, with some like H870 being too slow, and others being too fast. So the long barrels were necessary for using the slow ones. Surplus H570 worked well, but very few people had any of that, and even that was better with a long barrel. Also until about the late 70s very few barrel makers made barrels longer than 30".</p><p>Newer powders have changed much of that, and are the reason the 7x300 Win Mag is gaining in popularity.</p><p>I have seen an increase of about 200 fps since changing from H870 to 7828 in my 7x300 WBY using the same 162 gr bullets in the same barrel.</p></blockquote><p></p>
[QUOTE="yobuck, post: 1487981, member: 12443"] True 30 years ago, especially with the larger cases like the 30x378 Wby which was then a wildcat. Very few powder selections were available, with some like H870 being too slow, and others being too fast. So the long barrels were necessary for using the slow ones. Surplus H570 worked well, but very few people had any of that, and even that was better with a long barrel. Also until about the late 70s very few barrel makers made barrels longer than 30". Newer powders have changed much of that, and are the reason the 7x300 Win Mag is gaining in popularity. I have seen an increase of about 200 fps since changing from H870 to 7828 in my 7x300 WBY using the same 162 gr bullets in the same barrel. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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