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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Why Is My .280 AI so slow?
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<blockquote data-quote="Lefty7mmstw" data-source="post: 662086" data-attributes="member: 48043"><p>Have you looked at different bullets at all??? I've got rifles all over the map when it comes to bullet make. -- looking back I see you tried Berger.</p><p>I've had tipped bullets want to run slow; heck my tikka 270 is shooting a 130 interbond at 2700 fps with a compressed charge of wc872(50 cal powder) because I got the bullets really cheap and I have hundreds to shoot. The same rifle shoots 130 sierra's to 3000 fps with rl22 and 150's to 2850 with 7828. Another 270 will toss the 130 gmx to 3100 fps-- it's tipped.</p><p>Heck I'm playing with the 171 Barnes matchburner in my 7stw right now and it will do .55" at 2750 fps, but if I stomp it to 3100 fps, the groups hit 2" or so.</p><p>I've got some test loads ready for that rifle; I just need the wind to get down to a dull roar here in ND.</p><p>It's all a game of getting the harmonics right, and it seems the stars just don't align sometimes. The good news is there are other constellations to look at. Your rifle may want Barnes, Berger, or Sierra. You gotta play a bit sometimes.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 662086, member: 48043"] Have you looked at different bullets at all??? I've got rifles all over the map when it comes to bullet make. -- looking back I see you tried Berger. I've had tipped bullets want to run slow; heck my tikka 270 is shooting a 130 interbond at 2700 fps with a compressed charge of wc872(50 cal powder) because I got the bullets really cheap and I have hundreds to shoot. The same rifle shoots 130 sierra's to 3000 fps with rl22 and 150's to 2850 with 7828. Another 270 will toss the 130 gmx to 3100 fps-- it's tipped. Heck I'm playing with the 171 Barnes matchburner in my 7stw right now and it will do .55" at 2750 fps, but if I stomp it to 3100 fps, the groups hit 2" or so. I've got some test loads ready for that rifle; I just need the wind to get down to a dull roar here in ND. It's all a game of getting the harmonics right, and it seems the stars just don't align sometimes. The good news is there are other constellations to look at. Your rifle may want Barnes, Berger, or Sierra. You gotta play a bit sometimes. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Why Is My .280 AI so slow?
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