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
6.5-284 Norma + Scenar 136-L + H4831sc Load Verification
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="sawacs" data-source="post: 1515094" data-attributes="member: 107885"><p>Would you guys mind giving me a math check on my load data?</p><p></p><p>I am trying to figure out a safe starting load for my 6.5-284 Norma 24" CBI 1/8 twist barrel using the Lapua 136-L Scenar bullets.</p><p></p><p>Here is the situation..</p><p></p><p>My particular chamber will allow me to seat the 136's to 3.068" COAL which is touching the lands.</p><p></p><p>Lapua's data shows a COAL with the 136's of 3.110"</p><p></p><p>Berger sent me data for the 136's with a COAL of 3.180" which I cannot achieve due to a shorter throat.</p><p></p><p>Here is the data from Berger for the Lapua 136-L's using H4831sc which is the powder I am using.</p><p></p><p>Bullet: Scenar 136-L</p><p>Powder: H4831sc</p><p>COAL:3.180"</p><p>Start charge: 49.0gr 2657fps</p><p>Max Charge:54.2gr 2936fps</p><p></p><p>Just for reference, Nosler shows the following data for a 140 grain bullet</p><p></p><p>Powder: H4831sc</p><p>COAL: 2.980"</p><p>Start charge: 45.0gr 2601fps</p><p>Max charge:49.0gr 2769fps</p><p></p><p>My question is where to start with the charges if my seating depth is 3.058" COAL or .010 off the lands? </p><p></p><p>Would I be on the safe side starting with 49.0gr of 4831sc based on a seating COAL of 3.058"? I am fairly certain I would be okay starting with 49.0gr but it is always nice to hear opinions from others.</p><p></p><p>Advice would be appreciated!</p><p><a href="https://www.longrangehunting.com/" target="_blank">Home</a> <a href="https://www.longrangehunting.com/forums/" target="_blank">Forums</a></p></blockquote><p></p>
[QUOTE="sawacs, post: 1515094, member: 107885"] Would you guys mind giving me a math check on my load data? I am trying to figure out a safe starting load for my 6.5-284 Norma 24" CBI 1/8 twist barrel using the Lapua 136-L Scenar bullets. Here is the situation.. My particular chamber will allow me to seat the 136's to 3.068" COAL which is touching the lands. Lapua's data shows a COAL with the 136's of 3.110" Berger sent me data for the 136's with a COAL of 3.180" which I cannot achieve due to a shorter throat. Here is the data from Berger for the Lapua 136-L's using H4831sc which is the powder I am using. Bullet: Scenar 136-L Powder: H4831sc COAL:3.180" Start charge: 49.0gr 2657fps Max Charge:54.2gr 2936fps Just for reference, Nosler shows the following data for a 140 grain bullet Powder: H4831sc COAL: 2.980" Start charge: 45.0gr 2601fps Max charge:49.0gr 2769fps My question is where to start with the charges if my seating depth is 3.058" COAL or .010 off the lands? Would I be on the safe side starting with 49.0gr of 4831sc based on a seating COAL of 3.058"? I am fairly certain I would be okay starting with 49.0gr but it is always nice to hear opinions from others. Advice would be appreciated! [URL='https://www.longrangehunting.com/']Home[/URL] [URL='https://www.longrangehunting.com/forums/']Forums[/URL] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
6.5-284 Norma + Scenar 136-L + H4831sc Load Verification
Top