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
Velocity gains in .260 Remington?
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="milanuk" data-source="post: 34738" data-attributes="member: 376"><p>I just did a ladder test w/ H4350 and 142gr SMK last week, and went from 42.0gr thru 44.5gr, w/ almost a 150fps spread (just under 2800 to just over 2940). Ended up goin w/ 42.5, as there were no pressure signs, and a little better accuracy (@ 300yds). That, and by the numbers I ran on the 'puter, it showed about a whopping 1/2 minute advantage @ 1000yds to the fastest load vs.the slowest. About 1/4 minute at 600yds. Personally, I figured less powder down the barrel for essentially the same wind effect... mo' betta.</p><p></p><p>Most loads in a .260 Rem have a fair amount of air space behind the bullet anyway, enough that if you shake the case you can hear the powder in them. Varget, RE-19, H4350, so far all of these have a considerable air space when loaded to max. behind a 140 class bullet. Maybe not behind a 100-120gr class bullet, dunno. About the only load I've heard of where there wasn't physically enough space in the case is a still charge of H1000 behind a 142gr SMK... fellow has to trickle the charge in thru a drop tube to get it to fit <img src="http://images/icons/wink.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>YMMV,</p><p></p><p>Monte</p><p></p><p>[ 07-20-2004: Message edited by: milanuk ]</p></blockquote><p></p>
[QUOTE="milanuk, post: 34738, member: 376"] I just did a ladder test w/ H4350 and 142gr SMK last week, and went from 42.0gr thru 44.5gr, w/ almost a 150fps spread (just under 2800 to just over 2940). Ended up goin w/ 42.5, as there were no pressure signs, and a little better accuracy (@ 300yds). That, and by the numbers I ran on the 'puter, it showed about a whopping 1/2 minute advantage @ 1000yds to the fastest load vs.the slowest. About 1/4 minute at 600yds. Personally, I figured less powder down the barrel for essentially the same wind effect... mo' betta. Most loads in a .260 Rem have a fair amount of air space behind the bullet anyway, enough that if you shake the case you can hear the powder in them. Varget, RE-19, H4350, so far all of these have a considerable air space when loaded to max. behind a 140 class bullet. Maybe not behind a 100-120gr class bullet, dunno. About the only load I've heard of where there wasn't physically enough space in the case is a still charge of H1000 behind a 142gr SMK... fellow has to trickle the charge in thru a drop tube to get it to fit [img]images/icons/wink.gif[/img] YMMV, Monte [ 07-20-2004: Message edited by: milanuk ] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Velocity gains in .260 Remington?
Top