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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm-300 Win Mag
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<blockquote data-quote="FURMAN" data-source="post: 1480250" data-attributes="member: 26535"><p>My loaded necks with Norma or Nosler brass were .313 I cut my chamber for .316. I see no reason to mess with fire forming by creating a different angle shoulder. The bullet is going to like a certain velocity node and going to a 30 degree shoulder will not get you to the next higher node. The only thing it will do is make you have to fire form. Just run the straight 7-300, neck it down in two steps, load bullets, and shoot. My reamer was cut for 180 Hybrids so if you choose a different bullet you will most likely need more freebore. You can call Dave Kiff and mention my reamer and make any freebore adjustments necessary. My print is on file with PTG the number is 41753. Both of my barrels had an accuracy node around 3165fps out of 28" Bartleins. Both were about 1-1.5 grains below any indication of pressure.</p></blockquote><p></p>
[QUOTE="FURMAN, post: 1480250, member: 26535"] My loaded necks with Norma or Nosler brass were .313 I cut my chamber for .316. I see no reason to mess with fire forming by creating a different angle shoulder. The bullet is going to like a certain velocity node and going to a 30 degree shoulder will not get you to the next higher node. The only thing it will do is make you have to fire form. Just run the straight 7-300, neck it down in two steps, load bullets, and shoot. My reamer was cut for 180 Hybrids so if you choose a different bullet you will most likely need more freebore. You can call Dave Kiff and mention my reamer and make any freebore adjustments necessary. My print is on file with PTG the number is 41753. Both of my barrels had an accuracy node around 3165fps out of 28" Bartleins. Both were about 1-1.5 grains below any indication of pressure. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm-300 Win Mag
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