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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Wife wants a 6.5 heater, help me decide
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<blockquote data-quote="Engineering101" data-source="post: 1160560" data-attributes="member: 63138"><p>I would go with the 1 in 8 twist as faster twists will (as shown by Brian Litz) improve bullet BCs and the 1 in 8 is recommended for Berger 140s (it is right there printed on the box).</p><p> </p><p>As to the chambering. I found the 26 Nosler was screeming fast. I ended up with a 140 Nosler Accubond load that averaged 3,300 fps with 85.5 grains of US869. That is 3,385 foot pounds at the muzzle which is a bunch for a 6.5mm. It grouped 0.719" (4 shots) at 200 yards on my final load development target and I was ready to go hunting. However, I found it a bit touchy to reload. It was all or nothing meaning as you added powder it would go from well mannered to overpressure in a heartbeat. Gave me concerns about temp changes. I have since decided to rechamber the barrel in 6.5mmX300 WSM so the barrel is sitting here leaning against the wall in preparation for the redo. I also have a 28 Nosler which I love as it is both well mannered and fast. I'm hoping the 6.5 X 300 WSM is a little less extreme than the 26 Nosler.</p></blockquote><p></p>
[QUOTE="Engineering101, post: 1160560, member: 63138"] I would go with the 1 in 8 twist as faster twists will (as shown by Brian Litz) improve bullet BCs and the 1 in 8 is recommended for Berger 140s (it is right there printed on the box). As to the chambering. I found the 26 Nosler was screeming fast. I ended up with a 140 Nosler Accubond load that averaged 3,300 fps with 85.5 grains of US869. That is 3,385 foot pounds at the muzzle which is a bunch for a 6.5mm. It grouped 0.719" (4 shots) at 200 yards on my final load development target and I was ready to go hunting. However, I found it a bit touchy to reload. It was all or nothing meaning as you added powder it would go from well mannered to overpressure in a heartbeat. Gave me concerns about temp changes. I have since decided to rechamber the barrel in 6.5mmX300 WSM so the barrel is sitting here leaning against the wall in preparation for the redo. I also have a 28 Nosler which I love as it is both well mannered and fast. I'm hoping the 6.5 X 300 WSM is a little less extreme than the 26 Nosler. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Wife wants a 6.5 heater, help me decide
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