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Rifles, Reloading, Optics, Equipment
Reloading
150 gr 270 Win loads?
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<blockquote data-quote="budlight" data-source="post: 85410" data-attributes="member: 2939"><p>60 grains of IMR 7828 winchester brass with CCI 250 mag primers. Sierra 150 sbt's. I've gone as high as 61.8, but the cases get a light ding and very flat primers. I also found that the groups got the tightestwhen your not shooting the bullet at it's max for a given powder. </p><p></p><p>I'm a firm believer in finding the sweet spot powder. You have to spend time on a Chronograph. For the normal 270 I found that R-22 and IMR 7828 would yeild the highest speeds and accuracy in the 140 and 150 boat tails.</p><p></p><p>I tried H-1000 and R-25 and speed dropped off. The faster powders Like H-4831 and IMR 4831 would exceed the pressure limit before reaching the same speed as the R-22 and IMR7828</p><p></p><p>I just use a tall drop tube to pack the powder better and 60 grains with the heavy bullets is a compressed powder load.</p><p></p><p>4350 is excellant for 100 and 110 grain SP bullets for varmint shooting</p></blockquote><p></p>
[QUOTE="budlight, post: 85410, member: 2939"] 60 grains of IMR 7828 winchester brass with CCI 250 mag primers. Sierra 150 sbt's. I've gone as high as 61.8, but the cases get a light ding and very flat primers. I also found that the groups got the tightestwhen your not shooting the bullet at it's max for a given powder. I'm a firm believer in finding the sweet spot powder. You have to spend time on a Chronograph. For the normal 270 I found that R-22 and IMR 7828 would yeild the highest speeds and accuracy in the 140 and 150 boat tails. I tried H-1000 and R-25 and speed dropped off. The faster powders Like H-4831 and IMR 4831 would exceed the pressure limit before reaching the same speed as the R-22 and IMR7828 I just use a tall drop tube to pack the powder better and 60 grains with the heavy bullets is a compressed powder load. 4350 is excellant for 100 and 110 grain SP bullets for varmint shooting [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
150 gr 270 Win loads?
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