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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
18-20" 300 RUM: change my mind..
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<blockquote data-quote="comfisherman" data-source="post: 2638473" data-attributes="member: 8394"><p>I've built a 20 inch 300 as well as a 21 inch 7 rum. There is definitely loss from a 26" but I'm still way ahead on fps. I've chopped a lot of overbore cartridges down over the years, there is usually a threshold on the non linear progression of velocity loss. A 7-08 may loose 15-20 fps less per inch than a 7 rum.... but that 500 fps start means you need a - barrel lenghts for them to catch each other. </p><p></p><p>It's like commuting in a sports car, it's loud expensive and a bit uncomfortable... but if you don't mind the $$$ the performance is fun.</p></blockquote><p></p>
[QUOTE="comfisherman, post: 2638473, member: 8394"] I've built a 20 inch 300 as well as a 21 inch 7 rum. There is definitely loss from a 26" but I'm still way ahead on fps. I've chopped a lot of overbore cartridges down over the years, there is usually a threshold on the non linear progression of velocity loss. A 7-08 may loose 15-20 fps less per inch than a 7 rum.... but that 500 fps start means you need a - barrel lenghts for them to catch each other. It's like commuting in a sports car, it's loud expensive and a bit uncomfortable... but if you don't mind the $$$ the performance is fun. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
18-20" 300 RUM: change my mind..
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