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Rifles, Reloading, Optics, Equipment
Reloading
264 Win Mag Powder & 140gr Accubonds?
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<blockquote data-quote="Wookie316" data-source="post: 321537" data-attributes="member: 18820"><p><strong>H870 smartened it up <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></strong></p><p></p><p>I was able to get a pound of H870 for testing. Things are looking up.</p><p>Had to go to the gunsmith to have a trigger issue resolved which turned out to be a weak return spring. I also had him put a recessed crown on it & throat it 45 thousandths longer. Now the bullet seats much nicer. I am at a COL of 3.495 with a 140gr Accubond.</p><p></p><p>I loaded new Win brass with 215F primers. I started at 73gr H870 & went up to 75gr H870 with the 140gr Accubonds.</p><p></p><p>I only loaded the 130gr Accubonds at 75gr H870</p><p></p><p>I also tried some 130gr Accubonds with 62gr IMR7828. Speed was OK, groups sucked & signs of pressure were showing.</p><p></p><p>The 140gr @ 73gr were kind of all over the page.</p><p></p><p>The 140gr @ 74gr did the vertical string thing <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused :confused:" loading="lazy" data-shortname=":confused:" /> This made no sense what soever. The one is a definite pull, but the other 4 got higher every shot? Weird? Speed averaged 3179 FPS. This was also shot before the other groups. Any ideas on that group?</p><p></p><p>The 130gr @ 75gr grouped very well. There is 3 shots in that cluster at the top <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /> This group got me excited. Average speed was 3254. High 3265 Low 3248.</p><p></p><p>The last group was the 140gr @ 75gr. The one is a definite pull. the average speed was 3206. High 3216 Low 3197.</p><p></p><p>Looking like 75gr is the magic #. I'll play with the seating depth a bit. I am 12 thousandths off the lands currently.</p><p></p><p>Being H870 is discontinued I am hoping I can duplicate these groups with US869 when I get some this weekend. <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>The frustration is now starting to lift. I am now seeing the FPS & grouping I was looking for. A 264 with the right combo can shine.</p><p></p><p><img src="http://i566.photobucket.com/albums/ss108/jhowdle/DSC_2606.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Wookie316, post: 321537, member: 18820"] [b]H870 smartened it up :D[/b] I was able to get a pound of H870 for testing. Things are looking up. Had to go to the gunsmith to have a trigger issue resolved which turned out to be a weak return spring. I also had him put a recessed crown on it & throat it 45 thousandths longer. Now the bullet seats much nicer. I am at a COL of 3.495 with a 140gr Accubond. I loaded new Win brass with 215F primers. I started at 73gr H870 & went up to 75gr H870 with the 140gr Accubonds. I only loaded the 130gr Accubonds at 75gr H870 I also tried some 130gr Accubonds with 62gr IMR7828. Speed was OK, groups sucked & signs of pressure were showing. The 140gr @ 73gr were kind of all over the page. The 140gr @ 74gr did the vertical string thing :confused: This made no sense what soever. The one is a definite pull, but the other 4 got higher every shot? Weird? Speed averaged 3179 FPS. This was also shot before the other groups. Any ideas on that group? The 130gr @ 75gr grouped very well. There is 3 shots in that cluster at the top :eek: This group got me excited. Average speed was 3254. High 3265 Low 3248. The last group was the 140gr @ 75gr. The one is a definite pull. the average speed was 3206. High 3216 Low 3197. Looking like 75gr is the magic #. I'll play with the seating depth a bit. I am 12 thousandths off the lands currently. Being H870 is discontinued I am hoping I can duplicate these groups with US869 when I get some this weekend. :) The frustration is now starting to lift. I am now seeing the FPS & grouping I was looking for. A 264 with the right combo can shine. [IMG]http://i566.photobucket.com/albums/ss108/jhowdle/DSC_2606.jpg[/IMG] [/QUOTE]
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264 Win Mag Powder & 140gr Accubonds?
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