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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Rebuilding my 375 RUM
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<blockquote data-quote="Lefty7mmstw" data-source="post: 818797" data-attributes="member: 48043"><p><strong>Re: building a 375 h&h</strong></p><p></p><p>Benchracer, I've read the thread but haven't kept up very well here lately. </p><p>I thought you had a 375 but the names sometimes blur; sorry on that one. </p><p> </p><p>The 4350's aren't that good in the 375 as they are too bulky- we've talked about that I think. Rl15, v540, 4895, and the like will get you to max. pressure with about any bullet. I do stand on the apples and grapefruit one though as even lawyered up hodgdon is at 50,000 to 51,000 cup with the powders that will actually make pressure. They could go up a grain or two at times but the extra 50 fps isn't going to do squat; you really need to step up in cartridge to get a meaningful gain here.</p><p>I haven't pushed any factories through a barrel with a strain gauge so I can't say with certainty that they are or aren't underloaded, but win 300 silvertips's were over 2500fps in my old win 375 and that's with crappy win ball powder. Given that they are intended for african climates where you can get well over 100 degrees I'm not thinking they are cream-puffing it too much. </p><p>In the end I'd rather have a 375 <a href="mailto:h@h">h@h</a> at 2500 to 2600 fps with a 300 and let the bigger rounds hit it harder; I want my ammo to work anywhere I take the gun without building the loads for specific temp. ranges. </p><p>You do what you wish and have a good one. Apologies if I sounded a bit harsh on the last post.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 818797, member: 48043"] [b]Re: building a 375 h&h[/b] Benchracer, I've read the thread but haven't kept up very well here lately. I thought you had a 375 but the names sometimes blur; sorry on that one. The 4350's aren't that good in the 375 as they are too bulky- we've talked about that I think. Rl15, v540, 4895, and the like will get you to max. pressure with about any bullet. I do stand on the apples and grapefruit one though as even lawyered up hodgdon is at 50,000 to 51,000 cup with the powders that will actually make pressure. They could go up a grain or two at times but the extra 50 fps isn't going to do squat; you really need to step up in cartridge to get a meaningful gain here. I haven't pushed any factories through a barrel with a strain gauge so I can't say with certainty that they are or aren't underloaded, but win 300 silvertips's were over 2500fps in my old win 375 and that's with crappy win ball powder. Given that they are intended for african climates where you can get well over 100 degrees I'm not thinking they are cream-puffing it too much. In the end I'd rather have a 375 [EMAIL="h@h"]h@h[/EMAIL] at 2500 to 2600 fps with a 300 and let the bigger rounds hit it harder; I want my ammo to work anywhere I take the gun without building the loads for specific temp. ranges. You do what you wish and have a good one. Apologies if I sounded a bit harsh on the last post. [/QUOTE]
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Rebuilding my 375 RUM
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