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.280 Ackley Improved (factory cartridge)

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/10/2009 at 07:40
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I'm having an 280 Ackley Improved built. 26" Douglas Air Gauge barrel.  Will be shooting mostly 140/150 grain bullets. My question is, "What twist 9 or 10?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/10/2009 at 08:58
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1:10 for your given rates.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/10/2009 at 09:13
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Originally posted by pyro6999 pyro6999 wrote:

1:10 for your given rates.



+1
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/08/2009 at 18:36
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Has anyone tried the berger vld hunting bullets in their 280ai if so what powder worked best

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/08/2009 at 19:19
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I would try VV165. I have also had good results with the old standby powders like IMR-4350/4831 with 140's.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/09/2009 at 06:35
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Originally posted by kelly1278 kelly1278 wrote:

Has anyone tried the berger vld hunting bullets in their 280ai if so what powder worked best

 
160gr nosler accubond and H414 or varget.
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/10/2009 at 18:09
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i was thinking about the 168 vld . my barrel is a 9 twist lilja should shoot them pretty well . any suggestions ?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/11/2009 at 20:45
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The loads pyro6999 quotes are from an article I wrote for HANDLOADER magazine. They were chronographed in a 22" barrel. Not bad!
 
The .280 AI is a fine cartridge. If you think there really is a big difference between the .270 and .30-06 then it kinda splits the difference.
 
Personally, after using it some, I think the .270 and .30-06 are pretty much the same thing. Load any of them with 140-165 grain bullets and they're good to go. But the .30-06 will do more at the "big" end.....
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/11/2009 at 20:49
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I've been trying to tell these guys the same thing about that poor, old, broken down 30/06 and they don't listen. Maybe now that the "Voice" has spoken.....................well ya know
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/11/2009 at 21:03
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Originally posted by John Barsness John Barsness wrote:

The loads pyro6999 quotes are from an article I wrote for HANDLOADER magazine. They were chronographed in a 22" barrel. Not bad!
 
The .280 AI is a fine cartridge. If you think there really is a big difference between the .270 and .30-06 then it kinda splits the difference.
 
Personally, after using it some, I think the .270 and .30-06 are pretty much the same thing. Load any of them with 140-165 grain bullets and they're good to go. But the .30-06 will do more at the "big" end.....
 

i personally feel like the .280AI has that added "cool" factor to it that the others simply cant compete with. other wise yeah they are so close its not funny.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/11/2009 at 21:09
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Well, my voice may be somewhat jaded.
 
It's just as I've gotten older and shot more animals with various cartridges I've seen less and less difference in how they, uh, "perform."
 
If you know the rifle and shoot anything from a .270 on up to a .300 magnum, then the bullet and shooter make more difference than a few degrees in shoulder angle, or whether a bullet weighs 130 or 180 grains or starts at 2700 or 3200 fps.
 
It's fun to try for the the exactly perfect cartridge, but we care about the ballistic trivia more than the animals do.
 
The .280 gets about 50 fps more than the standard .280 with the same bullet weights at the same pressures, and maybe 100 fps more than the .270 Winchester.
 
It also gets about 100 fps less than the .30-06 with the same bullet weights loaded to the same pressures. Yeah, 7mm bullets have a little high BC, everything else being equal, but out to 500 yards there just ain't much difference even in the numbers, much less what happens when the bullet hits.
 
Sectional density also makes zip difference when using the better modern bullets. My wife has shot a number of 600-1000 pound big game animals with bullets weighing 130-165 grains with rounds like the .270, .308 and .30-06. The animals included elk, moose, zebra, kudu, wildebeest, etc.
 
Since Eileen is careful about bullet placement (and has shot a lot of animals so knows something about it) they all died very quickly. All the bullets either ended up under the hide on the far side (even on angling shots, some through the big shoulder joint) or went on through. I dunno how a .280 Ackley would have done better--especially since I have seen it at work some too.
 
But ain't it fun to agonize over tiny theoretical differences!
 
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/11/2009 at 21:28
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 Yep,that stuff'll drive ya "looney"!   Bucky
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/11/2009 at 21:34
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id rather have to many chamberings to pick from than not enough, but im missing a screw or two.

well so ive been told.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/14/2009 at 18:33
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I've been using the 168 VLD's for 500 to about 1300 yards and I'm very pleased. Powder to try is Reloader 17. I'm getting really good groups @ about 3030fps but I've had it up to over 3100fps with not much of a pressure sign at all. I do have a 27 inch barrel, 1-9 twist. Shoots best at 2950-3050.  It also shot really great at about 2750 (about 50 grs I believe) but I wanted to see what it would do.  Start at about 49 grains to be safe and work up. There is no load info for this that I know of except what I have posted on the net. I dont want to list my load because I think its more than most guns might take but RL 17 is worth a try. It seems like this powder would be too fast but its not. I will explain why if anyone would like to hear about it but for now just trust me. About 1.5 to 2 inches at 500 yards is the norm, sometimes even better. Pretty much one hole at 100 but I shoot much farther so I test farther. I'm getting some 180's to try next.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/15/2009 at 17:36
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If I did not already have a 280Rem, I would definitely try 280Ackley.  It just sounds like a very cool cartridge and let's face it, we all doing this for the fun of it.  I have firearms chambered for 280Rem, 8mm Mauser, 7.62x54R, 308Win, 7.5x55Swiss and 7.5x54French.  For any practical purpose, these are essentially interchangeable.  

ILya
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/17/2009 at 13:32
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I just purchased and took delivery of a Cooper Model 52 Jackson Hunter in .280 Rem.   I balked on the .280 AI because I'm not a reloader and was concerned about the availability of factory .280 AI ammo. 
 
I mounted a Zeiss Conquest 4.5x14x44 scope on it and bore sighted it.  Took it to the range yesterday.  I used factory Federal Fusion 140 grain ammo and shot a 4-shot grouping of 1/2" @ 50 yards with ease.   Made my adjustments and sighted in at 100 yards with 3/4" grouping with no effort.  I dont know if it was an illusion but it seemed to have less recoil than my Winchester Model 70 .270. 
 
 Wow!!! Nice shooting gun.  Who needs AI after all.   
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/17/2009 at 13:38
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The difference between the 280 and 280 Ackley is not even enough to start a good argument over. Just enjoy your new Cooper.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/17/2009 at 13:41
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No regret here. I'm as happy as a 10 year old on Christmas morning.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/17/2009 at 13:44
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I don't think there is a nicer factory semi-custom/production rifle on the market today, in my opinion.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/17/2009 at 20:38
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Very good rifles! I have shot a few, and have yet to hear about one that doesn't shoot great.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/18/2009 at 09:19
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got a steyr luxus when they first came out (around 75' I think) in 7x64 brenneke and used H mantle bullets (preceded nosler partitions) for a lot of game in Idaho and wyo. Any powder in the 4350 range works great, currently using WW780 with Amax (bc at .610). The main difference in reloading -- orginally the 280 was set up for the Remington auto and loaded way down. As Roy stated the 280 gives up very little to the AI when handloaded, and shows the least improvement from the Ackley formula.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/22/2009 at 14:45
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hi Dale;
Nice rifle: I like the 280 but have always had 270win.
ferrett
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: September/22/2009 at 20:16
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Originally posted by gferrett gferrett wrote:

hi Dale;
Nice rifle: I like the 280 but have always had 270win.
ferrett

if you shot and reloaded a .280 you would abandon the .270win
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2009 at 23:03
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Unfortunately I can't show you my Cooper since I dont have enough post to attach photosSad
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/29/2009 at 08:05
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Originally posted by nightranger nightranger wrote:

I dont know if it was an illusion but it seemed to have less recoil than my Winchester Model 70 .270. 


I had the same experience with a Model 70 in 30-06.... seemed to kick way more than a Rem Model 700 with the same exact ammo!  Sold it and have never bought another Model 70.  Mine was made in the 70's.
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