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Rifles, Reloading, Optics, Equipment
Reloading
Innovative Technologies Reloading Products?
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<blockquote data-quote="Trickymissfit" data-source="post: 639988" data-attributes="member: 25383"><p>Just looking at the case drawings a second on the .257 mag, it looks to me like a .285 bore is about right for the bushing. That is where the two radi intersect on the shoulder. I can see where the Hornaday outfit wouldn't work, but it would work with a Davidson. Even more interesting is that Stoney Point sold me all the pieces to do .270 mag brass, and Hornaday bought Stoney Point. I never checked the bore size on the .270 bushing, and have used it exactly one time. Set my dies up, and they've never been touched again. Yet when I look at the drawings I see no gauge line numbers. The AA manual looks like the headspace deminsion is 2.153", but without actually CADing it out I still would not trust it. I probably need to make up a drawing to see just what is right. The .270 mag case and the .257 mag case are very similar but for the neck diameter.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 639988, member: 25383"] Just looking at the case drawings a second on the .257 mag, it looks to me like a .285 bore is about right for the bushing. That is where the two radi intersect on the shoulder. I can see where the Hornaday outfit wouldn't work, but it would work with a Davidson. Even more interesting is that Stoney Point sold me all the pieces to do .270 mag brass, and Hornaday bought Stoney Point. I never checked the bore size on the .270 bushing, and have used it exactly one time. Set my dies up, and they've never been touched again. Yet when I look at the drawings I see no gauge line numbers. The AA manual looks like the headspace deminsion is 2.153", but without actually CADing it out I still would not trust it. I probably need to make up a drawing to see just what is right. The .270 mag case and the .257 mag case are very similar but for the neck diameter. gary [/QUOTE]
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Innovative Technologies Reloading Products?
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