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
Reloading
Help understanding neck thickness and bushing dies
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="AZShooter" data-source="post: 1065869" data-attributes="member: 5219"><p>Some of the Redding S bushing dies come with two sizer balls. One small so it can still hold the decapping pin and clear the neck. The only use I can think of for a .308 sizer ball that comes with the S busing die set is to iron out any dented necks of new brass. If your doesn't come with a smaller sizer ball you can always grind one down so it clears. </p><p></p><p>Are you aware that you have posted two neck wall sizes? You said it was .017" yet a loaded round is .339" As you can see calipers don't work that well for measuring neck wall thickness.</p><p> Subtracting .339 minus .308= .039 divide by 2 and you get .0155" for neck wall thickness. </p><p></p><p></p><p>If you buy a .338" bushing order a .337" at the same time. .001" might be a bit light for a bolt action repeating hunting rifle, the ammo in the mag box could have the bullet moving due to recoil with such a light neck tension. Only way to know for sure is to leave a round in the mag box and fire 3 or 4 then measure it. </p><p></p><p>Another nice feature of the bushing die is if you are working up a load and end up pulling a bunch of ammo that didn't shoot well. The bushing die is fast at resizing the necks, don't need any lube.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 1065869, member: 5219"] Some of the Redding S bushing dies come with two sizer balls. One small so it can still hold the decapping pin and clear the neck. The only use I can think of for a .308 sizer ball that comes with the S busing die set is to iron out any dented necks of new brass. If your doesn't come with a smaller sizer ball you can always grind one down so it clears. Are you aware that you have posted two neck wall sizes? You said it was .017" yet a loaded round is .339" As you can see calipers don't work that well for measuring neck wall thickness. Subtracting .339 minus .308= .039 divide by 2 and you get .0155" for neck wall thickness. If you buy a .338" bushing order a .337" at the same time. .001" might be a bit light for a bolt action repeating hunting rifle, the ammo in the mag box could have the bullet moving due to recoil with such a light neck tension. Only way to know for sure is to leave a round in the mag box and fire 3 or 4 then measure it. Another nice feature of the bushing die is if you are working up a load and end up pulling a bunch of ammo that didn't shoot well. The bushing die is fast at resizing the necks, don't need any lube. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Help understanding neck thickness and bushing dies
Top