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
Hunting
Long Range Hunting & Shooting
223ai first range session
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="VinceMule" data-source="post: 2829591" data-attributes="member: 122164"><p>tight dia throat or short length... hmmm.........</p><p></p><p>Better give him a call and get that throat dia</p><p></p><p>Some Hornady bullets now are "fat" with a large pressure ring.</p><p></p><p>I ran into problems with "Fat" bullets where the bullet was being pushed back in the case because it could not enter the throat. When you pull the trigger, the bullet gets sized down by the smaller throat dia, jacking up pressures and killing the best potential accuracy.</p><p></p><p>For example, if you have a bullet that is .2245, and you have a throat dia that is .2245, a little bit of carbon in the throat could spell trouble. This is usually easy to detect, chamber, and extract a loaded round on a blackened seated bullet. If all the black is scraped off the bullet where it entered the throat, you need to find a smaller dia bullet to shoot.</p><p></p><p>In some benchrest circles, they are running .2243 throats, using a micrometer to measure the bullet dia to the .0001 can eliminate a lot of trial and error in shooting bullets that just will not work well. To make matters even worse, reamer makers have +/- .0005 Tolerance in grinding the reamer.</p><p></p><p>Berger bullets run .2240 in the shank and .2243 on the pressure ring, Nosler bullets usually run a little undersize.</p><p></p><p>Lever powder will make those groups come alive with speed and a single bullet hole group.</p></blockquote><p></p>
[QUOTE="VinceMule, post: 2829591, member: 122164"] tight dia throat or short length... hmmm......... Better give him a call and get that throat dia Some Hornady bullets now are "fat" with a large pressure ring. I ran into problems with "Fat" bullets where the bullet was being pushed back in the case because it could not enter the throat. When you pull the trigger, the bullet gets sized down by the smaller throat dia, jacking up pressures and killing the best potential accuracy. For example, if you have a bullet that is .2245, and you have a throat dia that is .2245, a little bit of carbon in the throat could spell trouble. This is usually easy to detect, chamber, and extract a loaded round on a blackened seated bullet. If all the black is scraped off the bullet where it entered the throat, you need to find a smaller dia bullet to shoot. In some benchrest circles, they are running .2243 throats, using a micrometer to measure the bullet dia to the .0001 can eliminate a lot of trial and error in shooting bullets that just will not work well. To make matters even worse, reamer makers have +/- .0005 Tolerance in grinding the reamer. Berger bullets run .2240 in the shank and .2243 on the pressure ring, Nosler bullets usually run a little undersize. Lever powder will make those groups come alive with speed and a single bullet hole group. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
223ai first range session
Top