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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
260 Remington Cartridge
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<blockquote data-quote="Michael Eichele" data-source="post: 365153" data-attributes="member: 1007"><p>This is one of my favorate topics/debates.</p><p></p><p>A few facts (this is geared more towards target shooting than hunting):</p><p></p><p>1: BC typically goes up with calibers. This applies to the 260 versus the 308 as well.</p><p></p><p>2: As the BC and caliber goes up, unfortunately so does the recoil. This also applies to the 308 versus the 260 because it takes alot more weight for the BC to rise. 140 VLD = .615ish (light recoil). 208 AMAX = .648 (heavy recoil)</p><p></p><p>3: A smaller diameter bullet of equal weight and form compared to a larger diameter bullet will always win in the BC department. </p><p></p><p>4: A bigger bore shooting the same weight of bullet as a smaller bore will always win in the velocity department provided barrels are of equal length. You can run a 175 as fast in a 308 as you can a 142 in a 260. </p><p></p><p>5: Barrel life always goes up when equal cases are used when the bore is increased.</p><p></p><p>All that said, there is not a 260 load that will shoot as flat as the 308 when it is loaded to its full potential to 1K. The 139 versus the 155 Scenar (max velocity potential for each) will be 18" different to the 308's benefit. </p><p></p><p>Also, all that said, the difference in wind here is 10" at 10 MPH at 1K to the 260's benefit. To get the windage equal between the 260 and the 308 (which is possible) you have to sacrifice 2 things going to the 308. 1: Loss of trajectory. 2: Much more recoil. </p><p></p><p>From a match standpoint (not a hunting standpoint) trajectory in and of itself means nothing. Recoil and windage is however important. The 260 is a better choice for 1K matches, mostly due to the recoil. Any time you can have less wind drift, it is an advantage. Even though there are 308 loads that will keep up with the 260 for windage, the price is much heavier recoil. After a while this really does affect the shooter. As much as I love the 308, if I shot more matches than I do, I would easily have a 260 barrel for my short action platform. </p><p></p><p>As it is, I am getting a 284 barrel for my SA platform. This will be a 7mm08. Which (with the right bullets) will beat both the 260 and the 308 at 1K in the windage department. The recoil and bore life will just be in the middle.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 365153, member: 1007"] This is one of my favorate topics/debates. A few facts (this is geared more towards target shooting than hunting): 1: BC typically goes up with calibers. This applies to the 260 versus the 308 as well. 2: As the BC and caliber goes up, unfortunately so does the recoil. This also applies to the 308 versus the 260 because it takes alot more weight for the BC to rise. 140 VLD = .615ish (light recoil). 208 AMAX = .648 (heavy recoil) 3: A smaller diameter bullet of equal weight and form compared to a larger diameter bullet will always win in the BC department. 4: A bigger bore shooting the same weight of bullet as a smaller bore will always win in the velocity department provided barrels are of equal length. You can run a 175 as fast in a 308 as you can a 142 in a 260. 5: Barrel life always goes up when equal cases are used when the bore is increased. All that said, there is not a 260 load that will shoot as flat as the 308 when it is loaded to its full potential to 1K. The 139 versus the 155 Scenar (max velocity potential for each) will be 18" different to the 308's benefit. Also, all that said, the difference in wind here is 10" at 10 MPH at 1K to the 260's benefit. To get the windage equal between the 260 and the 308 (which is possible) you have to sacrifice 2 things going to the 308. 1: Loss of trajectory. 2: Much more recoil. From a match standpoint (not a hunting standpoint) trajectory in and of itself means nothing. Recoil and windage is however important. The 260 is a better choice for 1K matches, mostly due to the recoil. Any time you can have less wind drift, it is an advantage. Even though there are 308 loads that will keep up with the 260 for windage, the price is much heavier recoil. After a while this really does affect the shooter. As much as I love the 308, if I shot more matches than I do, I would easily have a 260 barrel for my short action platform. As it is, I am getting a 284 barrel for my SA platform. This will be a 7mm08. Which (with the right bullets) will beat both the 260 and the 308 at 1K in the windage department. The recoil and bore life will just be in the middle. [/QUOTE]
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