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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Norma vs 300 Norma Imp
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<blockquote data-quote="LeddSlinger" data-source="post: 2280433" data-attributes="member: 65338"><p>What Alex said here is true. I tested a lot of powders with my first couple NMIs. RL33, RL26, IMR 8133, IMR 7977, Retumbo and one or two others. Many of those powders proved a little troublesome with tuning on the NMI while also trying to achieve high velocities. Then I finally started testing N570. Fast speeds with no pressure signs were easy to come by with N570 which made tuning at the higher velocity nodes much easier.</p><p></p><p>If I had started with N570 on the NMI then I would claim it was easy to tune because it is. But when using some of the other powders listed above, it can be as tough to tune as anything else if you are concerned with achieving high velocity like I am. After all, I didn't choose the large NMI case to run bullets at low velocities. I chose it because it can deliver very high velocity with heavy bullets in a compact design that works well in a repeater action. If velocity wasn't a big concern, I would run a 300 PRC or Nosler variant.</p></blockquote><p></p>
[QUOTE="LeddSlinger, post: 2280433, member: 65338"] What Alex said here is true. I tested a lot of powders with my first couple NMIs. RL33, RL26, IMR 8133, IMR 7977, Retumbo and one or two others. Many of those powders proved a little troublesome with tuning on the NMI while also trying to achieve high velocities. Then I finally started testing N570. Fast speeds with no pressure signs were easy to come by with N570 which made tuning at the higher velocity nodes much easier. If I had started with N570 on the NMI then I would claim it was easy to tune because it is. But when using some of the other powders listed above, it can be as tough to tune as anything else if you are concerned with achieving high velocity like I am. After all, I didn’t choose the large NMI case to run bullets at low velocities. I chose it because it can deliver very high velocity with heavy bullets in a compact design that works well in a repeater action. If velocity wasn’t a big concern, I would run a 300 PRC or Nosler variant. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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300 Norma vs 300 Norma Imp
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