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
.257, 6.5mm and 270 Allen Mags, New Family or Rounds...
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: 36738" data-attributes="member: 10"><p>Jerry Tao,</p><p></p><p>You are correct the Dakota rounds are very similar to the STW in case volume so the AM rounds will provide roughly 16 grains more case volume over this case.</p><p></p><p>I looked hard at the Dakota case when designing this but then figured that teh 338 RUM would offer even more but not so much that it would be unpractical with 115 gr class bullets. </p><p></p><p>Certainly my rounds will run harder in the longer 28-30" barrels but they will still be around 100 fps faster then the STW/Dakota class of rounds in a 26" barrel. I would not recommend going down to a 24" barrel with these AM rounds. </p><p></p><p>They would still be faster then the smaller rounds but muzzle blast would greatly increase and your velocity advantage would be trimmed as well.</p><p></p><p>Where these rounds will shine will be with the very heavy, unconventional bullet weights such as the 145 adn 150 gr .257" Wildcat Bullets. This is where the true advantage will be for these new rounds.</p><p></p><p>That along with a case properly designed to push them very fast and accurately.</p><p></p><p>I have an XP-100 that I built myself in 6.5mm WSM and I am very impressed with the round. It is very accurate and plenty of power for deer out to a very long range even out of my handgun. I havested a mule deer doe with it a week ago with it at a measured 332 yards with a single 120 gr Ballistic Tip through the shoulders. Performed flawlessly.</p><p></p><p>Still I am striving for the ultimate in trajectory and on game performance, that is why I designed teh AM rounds.</p><p></p><p>Good Shooting!!</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 36738, member: 10"] Jerry Tao, You are correct the Dakota rounds are very similar to the STW in case volume so the AM rounds will provide roughly 16 grains more case volume over this case. I looked hard at the Dakota case when designing this but then figured that teh 338 RUM would offer even more but not so much that it would be unpractical with 115 gr class bullets. Certainly my rounds will run harder in the longer 28-30" barrels but they will still be around 100 fps faster then the STW/Dakota class of rounds in a 26" barrel. I would not recommend going down to a 24" barrel with these AM rounds. They would still be faster then the smaller rounds but muzzle blast would greatly increase and your velocity advantage would be trimmed as well. Where these rounds will shine will be with the very heavy, unconventional bullet weights such as the 145 adn 150 gr .257" Wildcat Bullets. This is where the true advantage will be for these new rounds. That along with a case properly designed to push them very fast and accurately. I have an XP-100 that I built myself in 6.5mm WSM and I am very impressed with the round. It is very accurate and plenty of power for deer out to a very long range even out of my handgun. I havested a mule deer doe with it a week ago with it at a measured 332 yards with a single 120 gr Ballistic Tip through the shoulders. Performed flawlessly. Still I am striving for the ultimate in trajectory and on game performance, that is why I designed teh AM rounds. Good Shooting!! Kirby Allen(50) [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.257, 6.5mm and 270 Allen Mags, New Family or Rounds...
Top