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
.270wcf vs 6.8 Western & 270 WSM
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="TRexF16" data-source="post: 2069234" data-attributes="member: 108912"><p>I have not gone and pulled up the diagrams, but I would bet blind that more case capacity will be taken up by the shank of a heavy VLD in the 270 WSM or 6.8W than the 270 Win, if all are in their respective SAMMI chambers. Just my hunch mentally picturing it. Even 150 LRABs go a long way into my 270 WSM's case, but the 270 Win has that nice long neck...</p><p></p><p>A .270 Win AI is only going to pick up a few FPS (like no more than 50, MAX) <em>when run at the same pressure</em> as the plain 270 Win. It's just physics. And when you start out with a 65K PSI cartridge there's just not much room to grow, as opposed to say. a 30-06 AI, which can pick up a lot, but only if you bump it up a fair bit more than the 60K PSI limit of the basic '06.</p><p></p><p>I'd be real interested to see what the basic .270 Win will do with these bullets and the wunder powders in the 26" rifles being discussed here. John Barsness got 2801 FPS and .84" avg. group with the 170 grain Berger EOL Elite Hunter with 56 gr RL-26 in the 22" barrel of the Mossberg Patriot test rifle in his Oct '19 Handloader article. [EDIT: and that was a 1:10 twist barrel]</p><p>No doubt at all the basic .270 Win can get the good out of these high BC bullets.</p><p></p><p>Cheers,</p><p>Rex</p></blockquote><p></p>
[QUOTE="TRexF16, post: 2069234, member: 108912"] I have not gone and pulled up the diagrams, but I would bet blind that more case capacity will be taken up by the shank of a heavy VLD in the 270 WSM or 6.8W than the 270 Win, if all are in their respective SAMMI chambers. Just my hunch mentally picturing it. Even 150 LRABs go a long way into my 270 WSM's case, but the 270 Win has that nice long neck... A .270 Win AI is only going to pick up a few FPS (like no more than 50, MAX) [I]when run at the same pressure[/I] as the plain 270 Win. It's just physics. And when you start out with a 65K PSI cartridge there's just not much room to grow, as opposed to say. a 30-06 AI, which can pick up a lot, but only if you bump it up a fair bit more than the 60K PSI limit of the basic '06. I'd be real interested to see what the basic .270 Win will do with these bullets and the wunder powders in the 26" rifles being discussed here. John Barsness got 2801 FPS and .84" avg. group with the 170 grain Berger EOL Elite Hunter with 56 gr RL-26 in the 22" barrel of the Mossberg Patriot test rifle in his Oct '19 Handloader article. [EDIT: and that was a 1:10 twist barrel] No doubt at all the basic .270 Win can get the good out of these high BC bullets. Cheers, Rex [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.270wcf vs 6.8 Western & 270 WSM
Top