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
Custom throat?
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: 1275603" data-attributes="member: 5219"><p>I prefer to buy a reamer to my specs. I would encourage you to do the same. You can't depend on the gunsmith to have the reamer that matches your requirements. </p><p></p><p>Other considerations: </p><p></p><p>Throat angle</p><p> In addition to the length of the throat there is the angle to consider. Most of mine use a 1 1/2 degree throat angle. </p><p></p><p> Neck clearance </p><p>Most Sammi spec chambers have generous chamber neck dimensions. I understand their reasoning, because the rifle may encounter different brands of brass with different neck thicknesses. Heck even the same manufacturer can produce different thicknesses with the same case. Look at the issue Gunwerks had with the 7 LRM brass supplied from Hornady. </p><p></p><p>I would suggest you acquire your brass and measure the thickness of the neck then calculate what you need for the chamber neck dimension. I generally use .006" total clearance between loaded round and chamber neck with hunting rifles. This way the necks are not over worked when sized (provided a bushing die is used) extending the brass's useful life.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 1275603, member: 5219"] I prefer to buy a reamer to my specs. I would encourage you to do the same. You can't depend on the gunsmith to have the reamer that matches your requirements. Other considerations: Throat angle In addition to the length of the throat there is the angle to consider. Most of mine use a 1 1/2 degree throat angle. Neck clearance Most Sammi spec chambers have generous chamber neck dimensions. I understand their reasoning, because the rifle may encounter different brands of brass with different neck thicknesses. Heck even the same manufacturer can produce different thicknesses with the same case. Look at the issue Gunwerks had with the 7 LRM brass supplied from Hornady. I would suggest you acquire your brass and measure the thickness of the neck then calculate what you need for the chamber neck dimension. I generally use .006" total clearance between loaded round and chamber neck with hunting rifles. This way the necks are not over worked when sized (provided a bushing die is used) extending the brass's useful life. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Custom throat?
Top