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.280AI vs. 30.06

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Unread 04-16-2004, 02:09 PM
Junior Member
Join Date: Apr 2004
Location: Los Angeles
Posts: 23
.280AI vs. 30.06

I have a great opportunity to change my 30.06 to a .280AI to include truing the action for a very low price. My question is, what would I be giving up? I look at the reloading books and it seems as if these two rounds are almost identical. Am I incorrect? [img]images/icons/confused.gif[/img]
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Unread 04-16-2004, 02:38 PM
Posts: n/a
Re: .280AI vs. 30.06

Yea their pretty close , The disadvantages I see with the 280Ai are low quality brass (could use 30-06Lapua though)
and lack of quality factory ammo.
the 7mm bullets do have better BC to Weight than the 30 cals do and SD is usualy better.

Personaly my vote goes to the 30-06Ai , I can shoot factory ammo out of it and still keep groups around an inch , but loaded with fireformed Lapua brass and a 180gr Nosler Partition it'll shoot around the 1/2" mark with velocity at the same level as factory 300 win. , all this with less fuss and cuss than the mag , an extra round in the magazine .
AND their is an almost edless supply of factoy 30-06 ammo that you couyld use in a pinch.

If you don't mind the little extra work at the reloading bench and fire forming your brass then the 280Ai is supposed to be a great round , about same performance as a fartory 7mm Rem mag
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Unread 04-18-2004, 11:24 PM
Platinum Member
Join Date: Jun 2007
Posts: 1,519
Re: .280AI vs. 30.06

Hi Airborne

I have been recently contemplating a dream rifle for long range deer and elk and ultra long on varmints. I was looking for an easy to form case and something that was less common than 06 or 308 but not something where I would be pioneering the loading data. I also want to be able to shoot it out of a gun that was light enough to carry afield to put down a wounded animal or to walk a short distance from the truck to call in coyotes.

My friend "Dave in Idaho" told me about an article in Varmint Hunter Magazine by Steve Timm that covered the .280 A.I. so I dug out the article and was quite interested. I searched for info on the internet and liked what I saw. In short I think a .280 A.I. is just my cup of tea.

Here are a few ballistic highlights that you can compare to the 06.

I ran numbers for a 140 grain nosler ballistic tip moving at a very realistic 3150 feet per second from the muzzle. The ballistic coeficient is published at .485

It has 3000+ foot pounds at the muzzle.
2000+ feet per second at 700 yards.
1000+ foot pounds at 875 yards.
Drops below subsonic at around 1600 yards.

It drops 22 minutes of angle at 1000 yards and 44 minutes at 1400 yards. This means that you could mount a leupold tactical scope with a 1 inch tube over a 40 MOA tapered base and shoot the crosshairs at 1400yards while having enough internal adjustment to come back to a 100 yard zero.

I dont know how the 06 compares to this but this is all quite exciting to me. All the performance of a 7mm mag with less recoil, less gunpowder, a certain level of uniqueness (is that a word?)and positive reports of tight accuracy and tons of clean kills. [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img]
GRAVITY. It's not just a good idea. It's the LAW!
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Unread 04-19-2004, 09:04 AM
Silver Member
Join Date: Dec 2003
Location: Aurora , Colorado
Posts: 125
Re: .280AI vs. 30.06

Don't forget the " GIBBS "
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Unread 04-19-2004, 03:07 PM
Bronze Member
Join Date: Jan 2004
Posts: 67
Re: .280AI vs. 30.06

If you have a good opportunity to true your action and rebarrel to 280 AI do it. Youre not doing anything bad except maybe giving up the ability to shoot really heavy bullets, but i believe that is a moot point since bullet contruction has alot more to do with performance than weight.

There are as many good bullets availible for 7mm as there are for 30 cal. The 280 will kill anything the 30-06 will. The 280 AI will be a better LR hunting cartridge because 7mm bullets have higher BC and the 280 AI is launching them faster, so it shoots flatter, almost as good as the 7mm rem mag. Its supposed to be a really accuracte cartridge too and you will end up with prolly a pretty accurate rig since your action will be trued up, assuming its a decent barrel. Ive never been a big fan of the old slow 30-06 anyway.
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Unread 04-19-2004, 11:48 PM
Bronze Member
Join Date: Dec 2003
Location: Utah
Posts: 70
Re: .280AI vs. 30.06

I would have to disagree. I have a 30-06AI, and I love it! I shoot the Sierra 190 SMK at a MV of 2950 fps!! Run the numbers on that one! My main reason for going with the 30-06AI was that I wanted some what magnum performance out of a standard length action/cartridge and the ability to shoot factory ammo at the same time, plus I can shoot military tracers (M62, M25) which is alot of fun. Sight in at a know range and watch the tracer to the target. I can't comment on the "slow 30-06" cuz mine ain't!! [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img]
"And that law of the land which is constitutional, supporting that priciple of freedom in maintaining rights and privileges, belongs to ALL mankind..." -D&C 98:5-
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Unread 04-20-2004, 01:58 PM
Bronze Member
Join Date: Apr 2004
Location: Michigan-USA
Posts: 75
Re: .280AI vs. 30.06

Just a word of caution: I don't believe the 30-06 case and the .280 case share the same headspace. I don't think you could use 06 brass to fireform for the 280 AI without forming a false shoulder first. [img]images/icons/shocked.gif[/img]
....when they pry my cold dead fingers from around it
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