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
416-338 and 338 Lapua whats the difference?
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: 220546" data-attributes="member: 10"><p>The Rigby case has an overall length of roughly 2.900" and has little body taper. The Lapua has alot of body taper and is only 2.700" in length case wise.</p><p> </p><p>So the Rigby has much more case capacity so it will produce more velocity right?????</p><p></p><p>Not really, its a weak case design, not really intended for use over 50,000 psi in its traditional load levels. Although the Lapua has a smaller case capacity its designed to handle much higher chamber pressures. In fact I have seen some tests were loads were using 70,000 psi loads and handling things fine.</p><p> </p><p>The 338-416 Ricby will get you around 100 fps more then the Lapua because of its huge powder capacity. But if you use the improved version of the Lapua, it will also get you 100-150 fps more velocity as well and do so with less powder then the Rigby and no brass forming needed other then fireforming which is also needed with th e338-416.</p><p> </p><p>The 338-378 Wby really made the 338-416 Rigby obsolete as they are basically the same thing but the Wby has the belted case design.</p><p> </p><p>Again, in this class of chamberings, you will see 15 to 18 fps per inch of barrel length for velocity increase.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 220546, member: 10"] The Rigby case has an overall length of roughly 2.900" and has little body taper. The Lapua has alot of body taper and is only 2.700" in length case wise. So the Rigby has much more case capacity so it will produce more velocity right????? Not really, its a weak case design, not really intended for use over 50,000 psi in its traditional load levels. Although the Lapua has a smaller case capacity its designed to handle much higher chamber pressures. In fact I have seen some tests were loads were using 70,000 psi loads and handling things fine. The 338-416 Ricby will get you around 100 fps more then the Lapua because of its huge powder capacity. But if you use the improved version of the Lapua, it will also get you 100-150 fps more velocity as well and do so with less powder then the Rigby and no brass forming needed other then fireforming which is also needed with th e338-416. The 338-378 Wby really made the 338-416 Rigby obsolete as they are basically the same thing but the Wby has the belted case design. Again, in this class of chamberings, you will see 15 to 18 fps per inch of barrel length for velocity increase. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
416-338 and 338 Lapua whats the difference?
Top