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
220 swift test results. Opinions needed
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="Ccctennis" data-source="post: 1028724" data-attributes="member: 68315"><p>I did my first big load development test this week with my 220-swift. I used a round robin system that I read lots of reloaders use. I need help deciphering some of the results. Here are the powder charges and group size:</p><p>Powder varget. Bullet hornady a-max 40 grain. 100 yard test. .4 increments. </p><p></p><p>36.8 gr. .6 inch</p><p>37.2 gr. 1.0 inch</p><p>37.6 gr. .75 inch</p><p>38.0 gr. .9 inch</p><p>38.4 gr. 1.5 inch</p><p>38.8 gr. .5 inch</p><p>39.2 gr. 1.0 inch</p><p>39.6 gr. 1.4 inch</p><p>40.0 gr. 2.0 inch</p><p>40.4 gr. 2.0 inch</p><p>Some questions I have regarding the test. </p><p>1. What is the next step in continued testing loads? </p><p>2. What do the up and down sizes really mean? Does it mean with barrel harmonics that my rifle shoots better with lighter powder charge and a heavier one. 36.8 and 38.8?</p><p>3. Do I take the best two or three weights and shoot more or do I tinker with coal?</p></blockquote><p></p>
[QUOTE="Ccctennis, post: 1028724, member: 68315"] I did my first big load development test this week with my 220-swift. I used a round robin system that I read lots of reloaders use. I need help deciphering some of the results. Here are the powder charges and group size: Powder varget. Bullet hornady a-max 40 grain. 100 yard test. .4 increments. 36.8 gr. .6 inch 37.2 gr. 1.0 inch 37.6 gr. .75 inch 38.0 gr. .9 inch 38.4 gr. 1.5 inch 38.8 gr. .5 inch 39.2 gr. 1.0 inch 39.6 gr. 1.4 inch 40.0 gr. 2.0 inch 40.4 gr. 2.0 inch Some questions I have regarding the test. 1. What is the next step in continued testing loads? 2. What do the up and down sizes really mean? Does it mean with barrel harmonics that my rifle shoots better with lighter powder charge and a heavier one. 36.8 and 38.8? 3. Do I take the best two or three weights and shoot more or do I tinker with coal? [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
220 swift test results. Opinions needed
Top