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
Talk me out of a 20 inch 300 Winchester magnum… or not.
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="yorke-1" data-source="post: 2386333" data-attributes="member: 11960"><p>I had a 16" 300 RUM specialty pistol that was getting 2980 FPS with a 180gr accubond with H4831sc. The same load gave 3130fps from a 26" rifle.</p><p></p><p>It's not a 30 caliber, but I went to the extreme with a 338 SnipeTac in a 20" barrel on a specialty pistol. I actually had a 30" rifle barrel cut with the same reamer, so I did a lot of direct comparisons between the two. Dropping 10" of barrel length cost me less than 250fps of velocity when the same load was fired in both guns. A 300gr OTM over 140gr if h50bmg gave 3120 fps in the 30" barrel, and 2890 fps in the 20" barrel.</p><p></p><p>If I dig through my notes, I have a lot of data on different chamberings in both short and long barrels shooting the same load.</p></blockquote><p></p>
[QUOTE="yorke-1, post: 2386333, member: 11960"] I had a 16” 300 RUM specialty pistol that was getting 2980 FPS with a 180gr accubond with H4831sc. The same load gave 3130fps from a 26” rifle. It’s not a 30 caliber, but I went to the extreme with a 338 SnipeTac in a 20” barrel on a specialty pistol. I actually had a 30” rifle barrel cut with the same reamer, so I did a lot of direct comparisons between the two. Dropping 10” of barrel length cost me less than 250fps of velocity when the same load was fired in both guns. A 300gr OTM over 140gr if h50bmg gave 3120 fps in the 30” barrel, and 2890 fps in the 20” barrel. If I dig through my notes, I have a lot of data on different chamberings in both short and long barrels shooting the same load. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Talk me out of a 20 inch 300 Winchester magnum… or not.
Top