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Rifles, Reloading, Optics, Equipment
Reloading
300winchester brass versus Norma ( case capacity difference)
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<blockquote data-quote="Greyfox" data-source="post: 1103070" data-attributes="member: 10291"><p>I compared the new 300WM Winchester brass to new Norma brass, both sized to the same length.</p><p>Using a sample of 5 rounds of each I found that the Winchester brass holds 2.3grs less water than the Norma brass. Winchester-90.2grs; Norma-92.5grs. The empty case weight is Winchester-236 Norma 219. The variation in weight of the Winchester was 4gr, Norma 1gr. Neck wall thickness is the same at .014". The Norma brass has very tight primer pockets, looks perfect, and is slightly larger in dimensions when placed in my Wilson case trimmer. The Winchester, as usual has some dented necks and the brass finish is mottled. I could not size the new Winchester brass in the Wilson dye holder because of the smaller case dimension of the new brass. Fired brass fits OK. I get 10 reloads out of the Norma brass annealing after 5 or 6 loads, same for the Winchester brass.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1103070, member: 10291"] I compared the new 300WM Winchester brass to new Norma brass, both sized to the same length. Using a sample of 5 rounds of each I found that the Winchester brass holds 2.3grs less water than the Norma brass. Winchester-90.2grs; Norma-92.5grs. The empty case weight is Winchester-236 Norma 219. The variation in weight of the Winchester was 4gr, Norma 1gr. Neck wall thickness is the same at .014". The Norma brass has very tight primer pockets, looks perfect, and is slightly larger in dimensions when placed in my Wilson case trimmer. The Winchester, as usual has some dented necks and the brass finish is mottled. I could not size the new Winchester brass in the Wilson dye holder because of the smaller case dimension of the new brass. Fired brass fits OK. I get 10 reloads out of the Norma brass annealing after 5 or 6 loads, same for the Winchester brass. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300winchester brass versus Norma ( case capacity difference)
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