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
375/408 Banded Solids Test
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="noel carlson" data-source="post: 360331" data-attributes="member: 16138"><p>Kelly,</p><p> </p><p>The 431 grain version was a very early ZA375 design that had stability problems when fired at a MV greater than 2,600 fps. This was remedied to some extent by tail revision, which added an additional 150 fps from the same 8" twist.</p><p> </p><p>A 1: 6.5" twist stabilizes the 421 grain, 7.0 caliber, to it's maximum velocity of 2,950 fps from a CheyTac case. The 400 grain 6.5 caliber ZA can be driven to 3,100-3,200 fps from the CheyTac. We have not tried am AM loading.</p><p> </p><p>Both are capable of sub-half minute groups out to 1,500 yards, but we are looking for better data collection at the upcoming Las Vegas test.</p><p> </p><p>Best,</p><p>Noel</p></blockquote><p></p>
[QUOTE="noel carlson, post: 360331, member: 16138"] Kelly, The 431 grain version was a very early ZA375 design that had stability problems when fired at a MV greater than 2,600 fps. This was remedied to some extent by tail revision, which added an additional 150 fps from the same 8" twist. A 1: 6.5" twist stabilizes the 421 grain, 7.0 caliber, to it's maximum velocity of 2,950 fps from a CheyTac case. The 400 grain 6.5 caliber ZA can be driven to 3,100-3,200 fps from the CheyTac. We have not tried am AM loading. Both are capable of sub-half minute groups out to 1,500 yards, but we are looking for better data collection at the upcoming Las Vegas test. Best, Noel [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
375/408 Banded Solids Test
Top