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
338 Lapua AI Different case designs
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="ELR Researcher" data-source="post: 1265939" data-attributes="member: 19541"><p>There is only ONE (1) true 338 LM Ackley Improved. If the shoulder angle has been changed from 40 degrees it is not a true Ackley Improved. PTG has info on the Ackley Improved head spacing - <u><a href="http://pacifictoolandgauge.com/material-downloads/reference-data/ackley-info-sheet.pdf" target="_blank">http://pacifictoolandgauge.com/material-downloads/reference-data/ackley-info-sheet.pdf</a></u> More info on Ackley wildcats at <u><a href="http://www.gundigest.com/wp-content/uploads/GunDigestPOAckley.pdf" target="_blank">http://www.gundigest.com/wp-content/uploads/GunDigestPOAckley.pdf</a></u> - while it pre-dates the 338 LM, it gives you the full story of what Ackley Improved is all about - from the source.</p><p> </p><p>As best I know, the PTG ".338 Lapua Ackley Improved" reamer is true Ackley Improved - <u><a href="http://pacifictoolandgauge.com/309-cal-348-cal-nopix-chamber-reamers/3612-338-lapua-ackley-improved.html" target="_blank">.338 Lapua Ackley Improved - Pacific Tool and Gauge</a></u></p><p> </p><p>All the above aside, people have modified various features of what Ackley Improved cartridges are suppose to be and created reamers with the same and different names - "other" names that get listed as .338 LM AI.</p><p> </p><p>The issue you run into is getting matching dies. Were I building such a rifle I'd go to PTG and buy both a finisher and a resizer - then have your smith cut you a set of dies using the resizer.</p><p> </p><p>BTW, the above problem is NOT limited to cartridges identified "AI". The problem is VERY widespread. The "finisher + resizer" route is the closest way I know of getting a good match short of having custom dies made from 3 cases each 3X fired (full load).</p><p> </p><p>Good luck.</p></blockquote><p></p>
[QUOTE="ELR Researcher, post: 1265939, member: 19541"] There is only ONE (1) true 338 LM Ackley Improved. If the shoulder angle has been changed from 40 degrees it is not a true Ackley Improved. PTG has info on the Ackley Improved head spacing - [U][URL]http://pacifictoolandgauge.com/material-downloads/reference-data/ackley-info-sheet.pdf[/URL][/U] More info on Ackley wildcats at [U][URL]http://www.gundigest.com/wp-content/uploads/GunDigestPOAckley.pdf[/URL][/U] - while it pre-dates the 338 LM, it gives you the full story of what Ackley Improved is all about - from the source. As best I know, the PTG ".338 Lapua Ackley Improved" reamer is true Ackley Improved - [U][URL="http://pacifictoolandgauge.com/309-cal-348-cal-nopix-chamber-reamers/3612-338-lapua-ackley-improved.html"].338 Lapua Ackley Improved - Pacific Tool and Gauge[/URL][/U] All the above aside, people have modified various features of what Ackley Improved cartridges are suppose to be and created reamers with the same and different names - "other" names that get listed as .338 LM AI. The issue you run into is getting matching dies. Were I building such a rifle I'd go to PTG and buy both a finisher and a resizer - then have your smith cut you a set of dies using the resizer. BTW, the above problem is NOT limited to cartridges identified "AI". The problem is VERY widespread. The "finisher + resizer" route is the closest way I know of getting a good match short of having custom dies made from 3 cases each 3X fired (full load). Good luck. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Lapua AI Different case designs
Top