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
Reloading
338LM Pressure Signs?
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="Beneviolence" data-source="post: 1268368" data-attributes="member: 99245"><p>Loading 338LM for a Savage 112 Magnum Target and I'm seeing flattened primers relatively early on, much before any sticky bolt. With these higher pressure cartridges, are flattened primers not the best indicators? Just due to soft primers?</p><p></p><p>H1000, 88gr</p><p>300gr SMK seated to 0.020" off the lands (3.690 COAL; 0.030" off the lands)</p><p>New Lapua brass</p><p>Winchester WLRM primers</p><p></p><p>For the above load data, I'm getting a very consistent 2690 ft/s out of a 26" 1:10 barrel. Even at 83gr I've seen flattened primers, and saw sticky bolt at 90gr with minor cratering. Never seen ejector marks though.</p><p></p><p>I'd rather get a consistent and accurate load than punish the brass & barrel for that extra 100ft/s and I know you do your own load development (and for good reason), but I'm just curious as to how plenty of people are doing 92gr and up.</p><p></p><p>Thanks for any advice.</p></blockquote><p></p>
[QUOTE="Beneviolence, post: 1268368, member: 99245"] Loading 338LM for a Savage 112 Magnum Target and I'm seeing flattened primers relatively early on, much before any sticky bolt. With these higher pressure cartridges, are flattened primers not the best indicators? Just due to soft primers? H1000, 88gr 300gr SMK seated to 0.020" off the lands (3.690 COAL; 0.030" off the lands) New Lapua brass Winchester WLRM primers For the above load data, I'm getting a very consistent 2690 ft/s out of a 26" 1:10 barrel. Even at 83gr I've seen flattened primers, and saw sticky bolt at 90gr with minor cratering. Never seen ejector marks though. I'd rather get a consistent and accurate load than punish the brass & barrel for that extra 100ft/s and I know you do your own load development (and for good reason), but I'm just curious as to how plenty of people are doing 92gr and up. Thanks for any advice. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
338LM Pressure Signs?
Top