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
long neck 300 win mag
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="Brent" data-source="post: 30301" data-attributes="member: 99"><p>D'Arcy,</p><p>I'm forming 338 Lapua brass down to 30 cal, but also pushing the shoulder/neck junction back to for the 40 deg shoulder, and a .405" neck length. This is done in the FL die with a .334" nk bushing alone and it works fine.</p><p></p><p>The only reason I fire form them with cream of wheat instead of seating a bullet and shooting it, is because it has a .335 nk and has to be turned first. COW forming first makes the neck walls perfect before turning/reaming with the K&M tool. </p><p></p><p>The original neck/shoulder junction is now up in the neck of the new formed case, so necks will be thicker at, and below this point until you do neck turn, so seating a bullet into this area or below might spell chamber clearance trouble, so it should be monitored closely to be safe.</p><p></p><p>No special dies to form the cases though, and I wouldn't think you'd need any on the 300 WM, a lot less forming on it than the 30/338 Lapua Imp.</p></blockquote><p></p>
[QUOTE="Brent, post: 30301, member: 99"] D'Arcy, I'm forming 338 Lapua brass down to 30 cal, but also pushing the shoulder/neck junction back to for the 40 deg shoulder, and a .405" neck length. This is done in the FL die with a .334" nk bushing alone and it works fine. The only reason I fire form them with cream of wheat instead of seating a bullet and shooting it, is because it has a .335 nk and has to be turned first. COW forming first makes the neck walls perfect before turning/reaming with the K&M tool. The original neck/shoulder junction is now up in the neck of the new formed case, so necks will be thicker at, and below this point until you do neck turn, so seating a bullet into this area or below might spell chamber clearance trouble, so it should be monitored closely to be safe. No special dies to form the cases though, and I wouldn't think you'd need any on the 300 WM, a lot less forming on it than the 30/338 Lapua Imp. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
long neck 300 win mag
Top