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
Gunsmithing
.308 barrel lenght?
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="Trickymissfit" data-source="post: 483631" data-attributes="member: 25383"><p>just had my best luck with the faster twist with slower velocity rounds in 30 caliber. I know it sounds strange, but has always worked well for me. Then when you look at the .308 trying to push a 190 grain Sierra at 2450fps; it's gonna need every bit of help it can get. By the way the Hornaday manual uses 1:10 twist barrels for their Service Rifle section with bullets upto 178 grain. Of course they also use a 1:12 twist for the generic stuff in .308. In the Speer manual, they use a 1:10 twist barrel, but also make note that Winchester liked to use 1:12 twist barrels. I don't own a .308 anymore (it was a 1:9.5 twist), but own several 30-06's. A couple use 1:12 twist barrels, and groups start to open up at 175 grains. I have one that has a 1:9 twist barrel, and it will shoot anything well once I find the sweet spot. I also own one with a 1:10 twist barrel, and it's similar to the 1:9 but have never shot anything heavier than 190 grains thru it.</p><p> </p><p> But alas if 1:12 twist does well in a .308 for you, then have at it. (note: the spec for a Palma twist is 1:13 @155 grains) If you wanta have some fun, try a 1:17 twist with lightweight bullets (<120 gr.)</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 483631, member: 25383"] just had my best luck with the faster twist with slower velocity rounds in 30 caliber. I know it sounds strange, but has always worked well for me. Then when you look at the .308 trying to push a 190 grain Sierra at 2450fps; it's gonna need every bit of help it can get. By the way the Hornaday manual uses 1:10 twist barrels for their Service Rifle section with bullets upto 178 grain. Of course they also use a 1:12 twist for the generic stuff in .308. In the Speer manual, they use a 1:10 twist barrel, but also make note that Winchester liked to use 1:12 twist barrels. I don't own a .308 anymore (it was a 1:9.5 twist), but own several 30-06's. A couple use 1:12 twist barrels, and groups start to open up at 175 grains. I have one that has a 1:9 twist barrel, and it will shoot anything well once I find the sweet spot. I also own one with a 1:10 twist barrel, and it's similar to the 1:9 but have never shot anything heavier than 190 grains thru it. But alas if 1:12 twist does well in a .308 for you, then have at it. (note: the spec for a Palma twist is 1:13 @155 grains) If you wanta have some fun, try a 1:17 twist with lightweight bullets (<120 gr.) gary [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Gunsmithing
.308 barrel lenght?
Top