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Joined: Jul 2005
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Campfire Outfitter
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OP
Campfire Outfitter
Joined: Jul 2005
Posts: 13,891 |
What. Is the Difference and Reason for 250-3000 ACKLEY IMPROVED WITH A 40 DEGREE SHOULDER??? Is it Not the Shoulder only? and Why did they do this? Just wondering for my own curiosity. Steve
�Can we move this along?" a bored voice stated. "I have places to be and people to shag."
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Joined: Jan 2005
Posts: 54,842
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2005
Posts: 54,842 |
the 250 AI give you ballistic more in line with a 257 Bob, thats why, you get more powder in the case and a more efficient burn with the short angled shoulder. It is just the shoulder that is different. Les
Back in the heartland, Thank God!
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Joined: Jan 2005
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Campfire Kahuna
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Campfire Kahuna
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Posts: 54,842 |
Back in the heartland, Thank God!
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Joined: May 2002
Posts: 11,282
Campfire Outfitter
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Campfire Outfitter
Joined: May 2002
Posts: 11,282 |
If you handload,the 250 AI can be pushed to nearly match 25/06 factory fodder numbers.
I would never have a 99 converted to it,but it's a cool round in a small bolt action rifle.My Dad hunts with a 250 AI made on a Weatherby Varmintmaster action-with a Leupold 3.5-10x,it weights right at 6 pounds IIRC.
WB.
Last edited by WheelchairBandit; 07/10/08.
"You set your own goals for success, and when you succeed it don't necessarily mean that you're going to be a big star or make a lot of money or anything. You'll feel it in your heart whether you've succeeded or not." - Roy Buchanan
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Joined: Jan 2005
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Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2005
Posts: 54,842 |
I don't think I would push it past 257 Bob standards........25-06 is really pushing it man.
Back in the heartland, Thank God!
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Joined: Dec 2002
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Dec 2002
Posts: 32,181 |
There just isn't enough case capacity in the 250AI to match the 25-06, if they are loaded to equal pressures, loaded with the same bullets, and have their speed measured by the same chronograph. The 250AI's reputation was made in the days before chronographs were commonly owned by "the average reloader" and high pressure was determined when primers started to flow.
Jeff
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Joined: May 2002
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Campfire Outfitter
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Campfire Outfitter
Joined: May 2002
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If any of you noticed,I said 25/06 factory loads,most of which aren't loaded real hot.
But whatever....
WB.
"You set your own goals for success, and when you succeed it don't necessarily mean that you're going to be a big star or make a lot of money or anything. You'll feel it in your heart whether you've succeeded or not." - Roy Buchanan
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Joined: Jul 2003
Posts: 6,467
Campfire Tracker
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Campfire Tracker
Joined: Jul 2003
Posts: 6,467 |
In bolt guns loading the .250AI, getting top performance pivots on whether you have a long or short action. With a long action rifle you can outseat the bullets and get more powder capacity.
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Joined: Jan 2005
Posts: 54,842
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2005
Posts: 54,842 |
WB, notice my smiley, not that i wouldn't push it in the right rifle.
Back in the heartland, Thank God!
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Joined: Aug 2004
Posts: 1,709
Campfire Regular
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Campfire Regular
Joined: Aug 2004
Posts: 1,709 |
The 250AI also doesn't have a tapered case, it's blown out straight, which allows more powder in the case.
READ THE BIBLE-IT WILL SCARE THE HELL OUT OF YOU! NO 99"s ARE JUNK, FDP NRA Endowment Life Member US Air Force Retired,Phantom Phixer
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Joined: Jul 2003
Posts: 6,467
Campfire Tracker
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Campfire Tracker
Joined: Jul 2003
Posts: 6,467 |
Chip - yes, that is certainly where the .250 AI gets most of its increased powder capacity. I like this cartridge because you can use both standard and wildcat ammunition. And, when you use standard ammunition, your fired cases are perfectly formed. I have quite a bit of experience with the .257 Robert AI. I currently have an 8mm-06 improved and used to have an 8 mm Gibbs which is basically and 8mm-06 improved improved. I also had a .280 AI/.270 Gibbs switch barrel that I liked real well. It's all fun
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Joined: Dec 2002
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Dec 2002
Posts: 32,181 |
If any of you noticed, I wrote "equal pressures".
But whatever.....
The 250AI made its reputation for greatness before chronographs were a common shooting bench tool for the serious reloader. POA never let a little thing like extreme high pressure get in the way of his favorite cartridges. This is obvious when you compare his comments on the 250AI and the 25 Souper, 2 cartridges that couldn't have closer preformance potentials. Per POA, the 250AI is super, while the 25 Souper is marginally OK, damned with faint praise. Load them to the same pressures and the results will be within rounding error of being equal.
Jeff
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Joined: May 2002
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Campfire Outfitter
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Campfire Outfitter
Joined: May 2002
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I'll take the blue one.You can keep the purple one.I don't think the purple one will work,but you can try.
WB.
"You set your own goals for success, and when you succeed it don't necessarily mean that you're going to be a big star or make a lot of money or anything. You'll feel it in your heart whether you've succeeded or not." - Roy Buchanan
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Joined: Dec 2002
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Campfire 'Bwana
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Campfire 'Bwana
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Campfire Outfitter
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Campfire Outfitter
Joined: May 2002
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You might be on to something-maybe the purple one will work?I still want the blue one nonetheless.
WB.
"You set your own goals for success, and when you succeed it don't necessarily mean that you're going to be a big star or make a lot of money or anything. You'll feel it in your heart whether you've succeeded or not." - Roy Buchanan
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