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
BC of 200g wildcat??
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="Fiftydriver" data-source="post: 110242" data-attributes="member: 10"><p>RemMan,</p><p></p><p>First off, at the velocity potential of the 7mm WSM I do not know if the standard 1-9 or 1-9.5 twist will stabilize this bullet. A 1-8 would and a 1-7 certainly would.</p><p></p><p>At +3000 fps, the 1-9 will start to work well and at +3100 fps they really start to shoot well. At the +3200 fps potential of the 7mm AM a 1-9 twist will accurately handle this bullet in most cases but thats with alot of velocity.</p><p></p><p>If you get a fast twist barrel and use this bullet as a single shot mode it would probably work very well.</p><p></p><p>Most do not realize that the 200 gr ULD RBBT has nearly identical baring surface as a 160 gr Accubond so the extra weight will not be a major issue to increasing pressures. The main problem is length and for a repeater it would not be a good choice in the WSM.</p><p></p><p>As far as BC is concerned. No idea what the true BC of this bullet is. What I can tell you is that I use a BC value of 0.910 in my Exbal program to match my 7mm AMs actual bullet flight out to well past 1000 yards. </p><p></p><p>Keep in mind this is at about 3500 ft elevation as well and at a velocity of 3200 fps.</p><p></p><p>Realistically, I would say you would top out at around 2750 to 2775 fps with this bullet in a 26" barrel out of the WSM. I do not think you would break 2800 fps comfortably in that barrel length with that bullet. This does not mean it will not perform at extreme range because it certainly will at those velocities.</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 110242, member: 10"] RemMan, First off, at the velocity potential of the 7mm WSM I do not know if the standard 1-9 or 1-9.5 twist will stabilize this bullet. A 1-8 would and a 1-7 certainly would. At +3000 fps, the 1-9 will start to work well and at +3100 fps they really start to shoot well. At the +3200 fps potential of the 7mm AM a 1-9 twist will accurately handle this bullet in most cases but thats with alot of velocity. If you get a fast twist barrel and use this bullet as a single shot mode it would probably work very well. Most do not realize that the 200 gr ULD RBBT has nearly identical baring surface as a 160 gr Accubond so the extra weight will not be a major issue to increasing pressures. The main problem is length and for a repeater it would not be a good choice in the WSM. As far as BC is concerned. No idea what the true BC of this bullet is. What I can tell you is that I use a BC value of 0.910 in my Exbal program to match my 7mm AMs actual bullet flight out to well past 1000 yards. Keep in mind this is at about 3500 ft elevation as well and at a velocity of 3200 fps. Realistically, I would say you would top out at around 2750 to 2775 fps with this bullet in a 26" barrel out of the WSM. I do not think you would break 2800 fps comfortably in that barrel length with that bullet. This does not mean it will not perform at extreme range because it certainly will at those velocities. Kirby Allen(50) [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
BC of 200g wildcat??
Top