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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Velocity gains in .260 Remington?
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<blockquote data-quote="WindTrax" data-source="post: 34735" data-attributes="member: 2606"><p>I recently had a rifle built up in 6.5-.308 Rem. 700, with a 27" Lilja barrel and Borden stock, etc. by Jim Cloward. Although I spec'd out that I wanted a longer magazine box installed so I could shoot a 2.9" cartridge rather than 2.8", using the 140 grain bullets, the smith installed the longer box but only throated the rifle for 2.8" long rounds. When I got the rifle home and called up with the issue, he told me it would be a "mistake" to throat it out to effectively speaking 2.930 instead of 2.830 as I'd only gain 0 to 20 feet per second. According to my calculations I'd be gaining approximately 1.4 grains of powder capacity. Are his fps gain estimates accurate or it there a likelihood of greater velocity gains than this minor improvement?</p><p></p><p>[ 07-20-2004: Message edited by: Beartrack ]</p><p></p><p>[ 07-20-2004: Message edited by: Beartrack ]</p><p></p><p>[ 08-09-2004: Message edited by: Beartrack ]</p></blockquote><p></p>
[QUOTE="WindTrax, post: 34735, member: 2606"] I recently had a rifle built up in 6.5-.308 Rem. 700, with a 27" Lilja barrel and Borden stock, etc. by Jim Cloward. Although I spec'd out that I wanted a longer magazine box installed so I could shoot a 2.9" cartridge rather than 2.8", using the 140 grain bullets, the smith installed the longer box but only throated the rifle for 2.8" long rounds. When I got the rifle home and called up with the issue, he told me it would be a "mistake" to throat it out to effectively speaking 2.930 instead of 2.830 as I'd only gain 0 to 20 feet per second. According to my calculations I'd be gaining approximately 1.4 grains of powder capacity. Are his fps gain estimates accurate or it there a likelihood of greater velocity gains than this minor improvement? [ 07-20-2004: Message edited by: Beartrack ] [ 07-20-2004: Message edited by: Beartrack ] [ 08-09-2004: Message edited by: Beartrack ] [/QUOTE]
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Velocity gains in .260 Remington?
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