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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Best bullet weight for 280 Ackley improved with 22 inch barrel
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<blockquote data-quote="Bob Wright" data-source="post: 1891135" data-attributes="member: 104363"><p>58.2 gr. No pressure here, but using the mag primers stopped erratic pressure anywhere during the ladder. </p><p>With a CCI BR2 primer it was erratic.</p><p>With Fed 215M:</p><p>59.0 light ejector at 3168 fps</p><p>59.5 bolt lift and increased ejector at 3172 fps</p><p>60.0 (Did not shoot)</p><p>So, I shot 3 shot groups starting at 57.4, .6, .8, 58.0, .2 and .4.</p><p>58.2 won, but there is not a wide flat area. Velocity variation is the real problem and if you look at the vertical in my target above, that is 6fps.</p><p>I still have work to do.</p><p>It also is the same with Barnes 145 LRX. A little velocity shows up dramatically in my rifle.</p></blockquote><p></p>
[QUOTE="Bob Wright, post: 1891135, member: 104363"] 58.2 gr. No pressure here, but using the mag primers stopped erratic pressure anywhere during the ladder. With a CCI BR2 primer it was erratic. With Fed 215M: 59.0 light ejector at 3168 fps 59.5 bolt lift and increased ejector at 3172 fps 60.0 (Did not shoot) So, I shot 3 shot groups starting at 57.4, .6, .8, 58.0, .2 and .4. 58.2 won, but there is not a wide flat area. Velocity variation is the real problem and if you look at the vertical in my target above, that is 6fps. I still have work to do. It also is the same with Barnes 145 LRX. A little velocity shows up dramatically in my rifle. [/QUOTE]
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Best bullet weight for 280 Ackley improved with 22 inch barrel
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