The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Medium Bore Rifles 300 H&H from 375Go | New | Find | Notify | Tools | Reply | |
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| One of Us |
Anybody formed 300 from 375 and if so how well did it go? I'd assume necks will need turning and possibly annealing as well? Roger | ||
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| One of Us |
According to Donnelly: Anneal case neck, FL size in 300 H&H die, square case neck, chamfer. | |||
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| One of Us |
thanks. easy enough. 375 brass I have, and can get more easily. Roger | |||
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| One of Us |
I'd try without the anneal and just size till they chamber. | |||
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| One of Us |
I've not found annealing case necks all that necessary. I did when forming 357 AMP from 44 but that was a really extreme change. I would expect some thickening and a need for turning to true up and restore concentricity. Roger | |||
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| One of Us |
.429 (.44) to .358 = .071 difference .375 to .30 =.067 difference Not a great difference! I would anneal!!! Shuddent Hoit! Hip | |||
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| one of us |
I get you have surplus 375 brass but when I was short 300 H&H, I resized 300 Wby. A straightforward process with very little trouble. Pancho LTC, USA, RET "Participating in a gun buy-back program because you think that criminals have too many guns is like having yourself castrated because you think your neighbors have too many kids." Clint Eastwood Give me Liberty or give me Corona. | |||
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