6.5x280 ackley improved

[archer8524]

Has anyone built or loaded for a 6.5x 280 ackley? Looking for any load data you’re willing to share. I’ll likely use 140 or 156 bergers


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[Trogon]

https://www.rokslide.com/the-6-5-06-ackley-improved/

 

[Blockcaver]

I have one. Will PM you some info.

The 6.5-06AI isn’t identical to the 6.5-280AI. I’ve had both, but never shot either one very much…..bowhunting got in the way.

 

[archer8524]

I have one. Will PM you some info.

The 6.5-06AI isn’t identical to the 6.5-280AI. I’ve had both, but never shot either one very much…..bowhunting got in the way.

Thanks I appreciate that send over whatever you have!


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[RaggedHunter]

I have a 6.5-06 ackley improved. It's not identical to a 280, but should be darn close to get you in the ball park on loads. I absolutely love the cartridge. If I ever build another I will likely build a 6.5x280 Ackley just to be able to buy factory brass and neck it down and cut out the fire forming step.

My gun really likes 140 Berger Elite hunters being pushed by Retumbo. Never got around to messing with the 156's because I would have ran into mag length issues. Plus the 140's shoot extremely well and perform excellent on game, so I've never had a reason to try anything else. My gun pushes the 140s at about 3,075 fps.

I don't remember my exact charge off the top of my head but I can look it up when I get home and PM it to you.

 

[archer8524]

I have a 6.5-06 ackley improved. It's not identical to a 280, but should be darn close to get you in the ball park on loads. I absolutely love the cartridge. If I ever build another I will likely build a 6.5x280 Ackley just to be able to buy factory brass and neck it down and cut out the fire forming step.

My gun really likes 140 Berger Elite hunters being pushed by Retumbo. Never got around to messing with the 156's because I would have ran into mag length issues. Plus the 140's shoot extremely well and perform excellent on game, so I've never had a reason to try anything else. My gun pushes the 140s at about 3,075 fps.

I don't remember my exact charge off the top of my head but I can look it up when I get home and PM it to you.

Thanks I would appreciate your data


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[HGL]

Buddy of mine is a gunsmith and he recently reamed out a factory 6.5 creed Tikka to a 6.5-280 using a custom Manson reamer he spec'd out. Don't know the particulars of the reamer specs but he did text me some initial load data, since he knows I like that stuff.

6.5-280, using Nosler .280 AI brass necked down. He's only tried one bullet and powder combo so far.

N560 under a Nosler 129 ABLR, 23.5" barrel suppressed:

61.0 gr - 3141 fps
61.5 gr - 3176
62.0 gr - 3269 pressure signs, likely max
62.5 gr - 3243 over max
63.0 gr - 3302 blown primer