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
Hunting
Long Range Hunting & Shooting
Finally tested my 338 LM load through a chronograph
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="Korhil78" data-source="post: 904313" data-attributes="member: 34818"><p>Finally got a hold of a chronograph to see if my velocity that I verified just by shooting out to 1780 yds. matched the actual chrono speed. I was only able to shoot 5 rounds through it because I didn't have a lot of time. </p><p></p><p>My gun is a custom 338 LM with a 26" barrel. </p><p></p><p>My load is:</p><p>Lapua brass</p><p>CCI 250 primers</p><p>300 gr Berger OTM</p><p>93 gr of H1000(no signs of pressure when shot under 80 degrees)</p><p></p><p>The velocity that I use from my drops from different ranges is 2815 fps. </p><p></p><p>Got the chrono set up and shot 5 shots letting the barrel cool for 5 minutes between shots. </p><p>1. 2824 fps</p><p>2. 2818 fps</p><p>3. 2830 fps</p><p>4. 2818 fps</p><p>5. 2824 fps</p><p></p><p>AVG was 2822 fps</p><p>ES was 12 fps</p><p>SD was 5 fps</p><p></p><p>I was very pleased with those numbers. I was very impressed with how close I was to the actual speed of the load. 7 FPS off the average is not too shabby just from verifying the speed from your drops at different ranges. I have been very pleased with this rifle and the 338 LM cartridge itself. Pretty dang fast out of a 26" barrel. </p><p></p><p>Hopefully this year, I will draw an elk tag or an oryx tag and get to bloody this rifle!</p></blockquote><p></p>
[QUOTE="Korhil78, post: 904313, member: 34818"] Finally got a hold of a chronograph to see if my velocity that I verified just by shooting out to 1780 yds. matched the actual chrono speed. I was only able to shoot 5 rounds through it because I didn't have a lot of time. My gun is a custom 338 LM with a 26" barrel. My load is: Lapua brass CCI 250 primers 300 gr Berger OTM 93 gr of H1000(no signs of pressure when shot under 80 degrees) The velocity that I use from my drops from different ranges is 2815 fps. Got the chrono set up and shot 5 shots letting the barrel cool for 5 minutes between shots. 1. 2824 fps 2. 2818 fps 3. 2830 fps 4. 2818 fps 5. 2824 fps AVG was 2822 fps ES was 12 fps SD was 5 fps I was very pleased with those numbers. I was very impressed with how close I was to the actual speed of the load. 7 FPS off the average is not too shabby just from verifying the speed from your drops at different ranges. I have been very pleased with this rifle and the 338 LM cartridge itself. Pretty dang fast out of a 26" barrel. Hopefully this year, I will draw an elk tag or an oryx tag and get to bloody this rifle! [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
Finally tested my 338 LM load through a chronograph
Top