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Rifles, Reloading, Optics, Equipment
Reloading
How much to back down?
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<blockquote data-quote="Wookie316" data-source="post: 323494" data-attributes="member: 18820"><p>Her is a good one for you. I was able to sneak away to do one last check before I head out for Antelope tomorrow AM (Early). I had some tight extractions @ 75g H870 & a 140gr Accubond. This is a load I tested ok not much more than a week ago & it rocked right around 3206 FPS. Yesterday the Chrony failed to read while I was getting hard extractions, so I don't have a clue what the speed was?</p><p></p><p>Fretting a stuck case on an animal last night I decided to drop down to 74gr H870 with a 140gr & sneak away to the range quickly to check all was in order. I also loaded my last 130gr Accubonds @ 75gr H870 as my back up. </p><p></p><p>Well either my Chrony is reading over a 100 FPS higher now, or I picked up 100 FPS from somwhere ?</p><p></p><p>Here were my speeds</p><p></p><p>140gr.</p><p></p><p>3304 FPS - 3371 FPS - 3324 FPS</p><p></p><p>130gr</p><p></p><p>3420 FPS - 3421 FPS (These were the 2 touching on the left group) - 3457 FPS</p><p></p><p><img src="http://i566.photobucket.com/albums/ss108/jhowdle/DSC_2644.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>I had no tight extractions. Now according to the measurement above the belt, case expansion was as follows:</p><p></p><p>New case .509</p><p></p><p>After firing .514</p><p></p><p>I check a few once fired cases with loads I know that were lower charges. They measured in the .513 -.5135 range.</p><p></p><p>So am I really shooting over 3300 FPS with a 140gr or is my chrony out to lunch? I think I'm starting to really like this rifle <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p><img src="http://i566.photobucket.com/albums/ss108/jhowdle/_JAY5151.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Wookie316, post: 323494, member: 18820"] Her is a good one for you. I was able to sneak away to do one last check before I head out for Antelope tomorrow AM (Early). I had some tight extractions @ 75g H870 & a 140gr Accubond. This is a load I tested ok not much more than a week ago & it rocked right around 3206 FPS. Yesterday the Chrony failed to read while I was getting hard extractions, so I don't have a clue what the speed was? Fretting a stuck case on an animal last night I decided to drop down to 74gr H870 with a 140gr & sneak away to the range quickly to check all was in order. I also loaded my last 130gr Accubonds @ 75gr H870 as my back up. Well either my Chrony is reading over a 100 FPS higher now, or I picked up 100 FPS from somwhere ? Here were my speeds 140gr. 3304 FPS - 3371 FPS - 3324 FPS 130gr 3420 FPS - 3421 FPS (These were the 2 touching on the left group) - 3457 FPS [IMG]http://i566.photobucket.com/albums/ss108/jhowdle/DSC_2644.jpg[/IMG] I had no tight extractions. Now according to the measurement above the belt, case expansion was as follows: New case .509 After firing .514 I check a few once fired cases with loads I know that were lower charges. They measured in the .513 -.5135 range. So am I really shooting over 3300 FPS with a 140gr or is my chrony out to lunch? I think I'm starting to really like this rifle :) [IMG]http://i566.photobucket.com/albums/ss108/jhowdle/_JAY5151.jpg[/IMG] [/QUOTE]
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Reloading
How much to back down?
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