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Rifles, Reloading, Optics, Equipment
Reloading
Cooper arms 280 ackley velocity
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<blockquote data-quote="hypersonic" data-source="post: 583536" data-attributes="member: 5217"><p>You have not mentioned bullet weight I use H- 4831 with 140 grain bullets in my 280 which is not the AI version and IMR-7828 with 160's. You have not mentioned if you are seeing any pressure signs with your current load so perhaps you could work up a bit to see if speed increases with your combo and then tweak for group size. I am getting 2820 with 160 Ab's over 7828 in my standard 280 but this rifle has a really fast barrel and I wish all my rifles were as easy to work up as this one has been. In the standard case for me Rl-22 was a wee bit faster than H-4831 but not even close to group size. Do not rule out RL-19 either if 4831 is not working for you I have had this powder turn a pig into a princess on a couple of ocasions right before I wrapped the rifle around a tree.</p><p></p><p> Best of luck</p></blockquote><p></p>
[QUOTE="hypersonic, post: 583536, member: 5217"] You have not mentioned bullet weight I use H- 4831 with 140 grain bullets in my 280 which is not the AI version and IMR-7828 with 160's. You have not mentioned if you are seeing any pressure signs with your current load so perhaps you could work up a bit to see if speed increases with your combo and then tweak for group size. I am getting 2820 with 160 Ab's over 7828 in my standard 280 but this rifle has a really fast barrel and I wish all my rifles were as easy to work up as this one has been. In the standard case for me Rl-22 was a wee bit faster than H-4831 but not even close to group size. Do not rule out RL-19 either if 4831 is not working for you I have had this powder turn a pig into a princess on a couple of ocasions right before I wrapped the rifle around a tree. Best of luck [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Cooper arms 280 ackley velocity
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