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
What size of bushings
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="SBruce" data-source="post: 723088" data-attributes="member: 21068"><p>I am using 293 and 292 bushings in the 6.5-284 with lapua brass. Your brass may have different neck thickness however.</p><p> </p><p>General rule of thumb is measure the neck OD of some loaded rounds, take the average of 3 measurements on each neck for 3 different cases then subtract .002 from that number...........Order that bushing plus one size smaller and one size bigger.</p><p> </p><p>My loaded rounds are averaging .294, so I used the 292. But, I found I get less runout with the 293 bushing, so I started using it.</p><p> </p><p>If you don't yet have a way to load a dummy round, you can measure the neck thickness, multiply it by 2 and add the bullet diameter. This will give you a very similar number to what your loaded rounds will mic at. Providing you use the proper tools to mic the necks..........dial calipers are not the proper tool, unless they have a sharp blade at the tips.</p><p> </p><p>Hope that answers your question, good luck.</p></blockquote><p></p>
[QUOTE="SBruce, post: 723088, member: 21068"] I am using 293 and 292 bushings in the 6.5-284 with lapua brass. Your brass may have different neck thickness however. General rule of thumb is measure the neck OD of some loaded rounds, take the average of 3 measurements on each neck for 3 different cases then subtract .002 from that number...........Order that bushing plus one size smaller and one size bigger. My loaded rounds are averaging .294, so I used the 292. But, I found I get less runout with the 293 bushing, so I started using it. If you don't yet have a way to load a dummy round, you can measure the neck thickness, multiply it by 2 and add the bullet diameter. This will give you a very similar number to what your loaded rounds will mic at. Providing you use the proper tools to mic the necks..........dial calipers are not the proper tool, unless they have a sharp blade at the tips. Hope that answers your question, good luck. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
What size of bushings
Top