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
Testing two rifles, identical chambers ...different barrels
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="Black Diamond 408" data-source="post: 112680" data-attributes="member: 1563"><p>I did some more load testing last weekend with the WC872 powder and 300MK's. I loaded up 148,149 and 150grns in some cases that have shot at least 3 loadings. 3350fps up to 3450 was the range between the loads, 150grn load was topped out for my gun, Signs of ejector marks on the brass.</p><p> I shot targets from 100yds out to 700yds, various distances in between. I spent most of the morning lasering the entire range and putting out markers as to the distances. My range is my pasture so it has never been marked off, MOO cows seem to destroy things left lying around. Groups at 100yds were oblong holes on average between all loads, three shots ea. 300yd three shot groups were cloverleafs. 500 yard i completly cleaned and started over, groups were now .600 on average, 148grn load was the smallest at .552. 700yards the groups were right at 2", i also cleaned before starting this test distance. The wind came up and played havoc with my bench during this test. I have settled on 148grns of WC872 in my personal gun, 3395 was the average speed on this particular day. It was 90deg, sunny and 10-15mph wind into and from the left.</p><p> I only did this test with my personal gun, gun one. The bbl was easy to clean, Very little copper, wiped out in one pass through with Outers foaming cleaner. I used Hoppes for the carbon residue.</p><p></p><p>All loads were with the bullet just touching the riflings, 215 mag match primers, TTI armory and German brass was used.</p><p>300mk bullets had the meplats uniformed, no weighing of cases or bullets was done. The runout of the necks or bullets was tested either. Powder was dropped by a Lyman measure, no individual weighing of powder was done. Basic style reloading, nothing match or benchrest was performed. Cases were trimmed, but not neck turned. The next round of tests will be more of a match quality situation. I will start a new thread for that test.</p><p></p><p>Dave</p></blockquote><p></p>
[QUOTE="Black Diamond 408, post: 112680, member: 1563"] I did some more load testing last weekend with the WC872 powder and 300MK's. I loaded up 148,149 and 150grns in some cases that have shot at least 3 loadings. 3350fps up to 3450 was the range between the loads, 150grn load was topped out for my gun, Signs of ejector marks on the brass. I shot targets from 100yds out to 700yds, various distances in between. I spent most of the morning lasering the entire range and putting out markers as to the distances. My range is my pasture so it has never been marked off, MOO cows seem to destroy things left lying around. Groups at 100yds were oblong holes on average between all loads, three shots ea. 300yd three shot groups were cloverleafs. 500 yard i completly cleaned and started over, groups were now .600 on average, 148grn load was the smallest at .552. 700yards the groups were right at 2", i also cleaned before starting this test distance. The wind came up and played havoc with my bench during this test. I have settled on 148grns of WC872 in my personal gun, 3395 was the average speed on this particular day. It was 90deg, sunny and 10-15mph wind into and from the left. I only did this test with my personal gun, gun one. The bbl was easy to clean, Very little copper, wiped out in one pass through with Outers foaming cleaner. I used Hoppes for the carbon residue. All loads were with the bullet just touching the riflings, 215 mag match primers, TTI armory and German brass was used. 300mk bullets had the meplats uniformed, no weighing of cases or bullets was done. The runout of the necks or bullets was tested either. Powder was dropped by a Lyman measure, no individual weighing of powder was done. Basic style reloading, nothing match or benchrest was performed. Cases were trimmed, but not neck turned. The next round of tests will be more of a match quality situation. I will start a new thread for that test. Dave [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Testing two rifles, identical chambers ...different barrels
Top