Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Remington 260...The new Sniper rifle?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Michael Eichele" data-source="post: 251465" data-attributes="member: 1007"><p>With match bullets yes. With hunting bullets, not so sure. The 140 AB has a BC of .490 The 180 AB is .507. Heavier hunting bullets with higher BC's in the 308's. Albiet 264 match bullets have the 308 match bullets beat.</p><p></p><p>I will concede to the fact that a 140/264 bullet will have a greater SD than the 180/308.</p><p></p><p>Lets bump this up a notch or two.</p><p></p><p>200 AB/301 SD vs 140 AB/287 SD at 1K</p><p></p><p>308/200 AB at 1K</p><p></p><p>Velocity = 1331</p><p>Energy = 787</p><p>Drop = 332</p><p>Wind (10 MPH) = 83</p><p></p><p></p><p>264/140 AB at 1K</p><p></p><p>Velocity = 1326</p><p>Energy = 547</p><p>Drop = 294</p><p>Wind (10 MPH) = 90</p><p></p><p>At the 600 yard mark the differences are about the same. The 264 will have 10" less drop yet 2 more inches of wind. The 264 will have 100 FPS more but just under 200 FPE less.</p><p></p><p>Again my point here isnt to say the 308 is better, just that it can hold its own against ANY other caliber based on the 308 case.</p><p></p><p>Another quality the 308 has over the 260 is more burn area inside the barrel. Equal length for equal length, the 308 will launch the same weight of bullet faster than the smaller bores. This is how we get heavier bullets in the 308 up to the same speed and even faster for the really small bores making up for some of that BC loss. It takes a 30.33" .264 barrel to equal the burn area of a 26" 308 barrel.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 251465, member: 1007"] With match bullets yes. With hunting bullets, not so sure. The 140 AB has a BC of .490 The 180 AB is .507. Heavier hunting bullets with higher BC's in the 308's. Albiet 264 match bullets have the 308 match bullets beat. I will concede to the fact that a 140/264 bullet will have a greater SD than the 180/308. Lets bump this up a notch or two. 200 AB/301 SD vs 140 AB/287 SD at 1K 308/200 AB at 1K Velocity = 1331 Energy = 787 Drop = 332 Wind (10 MPH) = 83 264/140 AB at 1K Velocity = 1326 Energy = 547 Drop = 294 Wind (10 MPH) = 90 At the 600 yard mark the differences are about the same. The 264 will have 10" less drop yet 2 more inches of wind. The 264 will have 100 FPS more but just under 200 FPE less. Again my point here isnt to say the 308 is better, just that it can hold its own against ANY other caliber based on the 308 case. Another quality the 308 has over the 260 is more burn area inside the barrel. Equal length for equal length, the 308 will launch the same weight of bullet faster than the smaller bores. This is how we get heavier bullets in the 308 up to the same speed and even faster for the really small bores making up for some of that BC loss. It takes a 30.33" .264 barrel to equal the burn area of a 26" 308 barrel. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Remington 260...The new Sniper rifle?
Top