Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Classifieds
Media
New media
New comments
Search media
Log in
Register
What's New?
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Navigation
Install the app
Install
More Options
Advertise with us
Contact Us
Close Menu
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
.
Forums
The Range
Ammo & Reloading
More .223 reloading questions
Search titles only
By:
Reply to Thread
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="swampratt" data-source="post: 3413384" data-attributes="member: 15054"><p>Yes there are many .223 cases that will be much shorter than the trim length.</p><p></p><p>That is a non issue. Seat the bullet to the same OAL in all cases you are using. DO not seat each bullet to the cannelure.</p><p>That is not a needed procedure.. consistent AOL is more important for accuracy.</p><p></p><p>Now I do not mean the measurement of the round from base to tip of bullet as that can be a few thousandths off because the tip of the bullet could get beat a little in shipping.</p><p></p><p>Just keep the seating die in the same place for all rounds using the same bullet.</p><p></p><p>The reason so many .223 cases are shorter is Mass production and the fact that the manufacturers want to make darn sure the brass is not too long so they stay way under the SAAMI specs in my opinion.</p><p></p><p>When I did a brass fail test for .308 I had 4 cases I loaded until they failed.</p><p>1 Remington case .</p><p>1 Federal case .</p><p>1 Lapua case .</p><p>1 Winchester case.</p><p>I did not trim the cases until the case mouth got into the rifling and that was .030" longer than the MAX SAAMI trim length</p><p>for .308 which is 2.015" and minimum is 2.005"</p><p>When I did trim them I modified a Lee trimmer to cut the cases to I think 1.990"</p><p>This way I could stay at the range and shoot and reload the cases many more times before I had to trim them.</p><p></p><p>Remington case went 52 or 54 reloads and this was full length sizing each time.</p><p>All rounds would print under 1" groups no matter the trim length.</p><p></p><p>I determined trim length of the brass is a non issue for decent hunting ammo.</p><p>My hunting ammo shoots under 1" groups at 100 yards.</p><p>I do not crimp.</p><p></p><p>If you feel you must add a crimp the Lee Factory crimp die will do it and you do not need a cannelure on the bullet to do it with that die.</p><p>It may be the same for other dies I do not know.</p><p>I use Lee.</p><p></p><p>Do not worry that you are not at 2.20" OAL that is stated in the Lee paper.</p><p>Lee does not do any bullet testing Lee gets their load data from the powder companies.</p><p></p><p>If your specific bullet is in the load data in a manual it will probably show a short OAL like you experience.</p><p>Now one more thing to add to this is your batch number of bullet may be different than what batch number was used at the time Load data was produced.</p><p></p><p>They could have changed the nose profile of the bullet a bit Tangent Ogive VS a Secant Ogive.</p><p></p><p>Look that up .</p><p>Tangent VS secant Ogive and then now some manufacturers of bullets mix the 2 Ogives to make a hybrid of sort.</p><p>And like stated before the cannelure could be moved to a different position.</p><p>Maybe a 218 Bee needs it in a different place than a .223 so the manufacturer split the difference..I have no Idea just spit balling.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3413384, member: 15054"] Yes there are many .223 cases that will be much shorter than the trim length. That is a non issue. Seat the bullet to the same OAL in all cases you are using. DO not seat each bullet to the cannelure. That is not a needed procedure.. consistent AOL is more important for accuracy. Now I do not mean the measurement of the round from base to tip of bullet as that can be a few thousandths off because the tip of the bullet could get beat a little in shipping. Just keep the seating die in the same place for all rounds using the same bullet. The reason so many .223 cases are shorter is Mass production and the fact that the manufacturers want to make darn sure the brass is not too long so they stay way under the SAAMI specs in my opinion. When I did a brass fail test for .308 I had 4 cases I loaded until they failed. 1 Remington case . 1 Federal case . 1 Lapua case . 1 Winchester case. I did not trim the cases until the case mouth got into the rifling and that was .030" longer than the MAX SAAMI trim length for .308 which is 2.015" and minimum is 2.005" When I did trim them I modified a Lee trimmer to cut the cases to I think 1.990" This way I could stay at the range and shoot and reload the cases many more times before I had to trim them. Remington case went 52 or 54 reloads and this was full length sizing each time. All rounds would print under 1" groups no matter the trim length. I determined trim length of the brass is a non issue for decent hunting ammo. My hunting ammo shoots under 1" groups at 100 yards. I do not crimp. If you feel you must add a crimp the Lee Factory crimp die will do it and you do not need a cannelure on the bullet to do it with that die. It may be the same for other dies I do not know. I use Lee. Do not worry that you are not at 2.20" OAL that is stated in the Lee paper. Lee does not do any bullet testing Lee gets their load data from the powder companies. If your specific bullet is in the load data in a manual it will probably show a short OAL like you experience. Now one more thing to add to this is your batch number of bullet may be different than what batch number was used at the time Load data was produced. They could have changed the nose profile of the bullet a bit Tangent Ogive VS a Secant Ogive. Look that up . Tangent VS secant Ogive and then now some manufacturers of bullets mix the 2 Ogives to make a hybrid of sort. And like stated before the cannelure could be moved to a different position. Maybe a 218 Bee needs it in a different place than a .223 so the manufacturer split the difference..I have no Idea just spit balling. [/QUOTE]
Insert Quotes…
Verification
Post Reply
Forums
The Range
Ammo & Reloading
More .223 reloading questions
Search titles only
By:
Top
Bottom
