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Joined: Feb 2001
Posts: 193
Campfire Member
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Campfire Member
Joined: Feb 2001
Posts: 193 |
I can get a kiss with the Berger 168 gr Classic Hunter and they are very accurate.
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Joined: Feb 2010
Posts: 2,839
Campfire Regular
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OP
Campfire Regular
Joined: Feb 2010
Posts: 2,839 |
I will definitely give the Classic hunters a chance in the 280ai. What kind of speeds are you getting?
I picked up a box of Hornady 75gr hpbt yesterday to try in the 223. Looks like I should be able to get around 2800fps.
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Joined: Jan 2009
Posts: 8,900 Likes: 1
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2009
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Give the 70 grain VLDs a look. They can be run at mag length, and have the potential for 3000 fps.
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Joined: Feb 2010
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Campfire Regular
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I looked for them yesterday, there was not even a space on the shelf for them at Sportsmans or Bobby Wards. 3000fps sounds fast for 70gr in a 22inch
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Joined: Jan 2009
Posts: 8,900 Likes: 1
Campfire Outfitter
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Campfire Outfitter
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Third Gen and Graf & Sons have them. 3000 is certainly doable in a 22� barrel; check out Ramshot�s data.
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Joined: Feb 2010
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Looks like 2950 in a 24in barrel for a 68gr horn in vanilla .223 at 54,000
Will the Montanan withstand the .556 loads at 62,350 psi? Seems you could really get the heavies moving at those pressures
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Joined: Jan 2009
Posts: 8,900 Likes: 1
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2009
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I�ll just say that I�ve shot the 70s at 3000 fps in a 22� barrel and felt pressure was fine. Though a hundred feet per second isn�t going to change much, so if a guy stopped at 2900 he really wouldn�t lose anything. If I had several rifles I was interchanging ammo between, stopping around that 2900 fps mark could be a prudent move.
As for the 5.56 pressure levels in the Kimber; plenty of folks are rechambering their Kimber 223s to 223 AI and they seem to be working fine. The velocities increases seen in the AI over the standard 223 is primarily due to increased pressure, since the case capacity increase is quite small. Some of the 223 AI data is rather brisk, to put it nicely, and the Kimbers seem to be surviving nicely. At least I have not heard of any issues. So I suspect that many of the 223 AIs out there are running at 5.56 or higher pressure levels.
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Joined: Feb 2009
Posts: 6,766 Likes: 1
Campfire Tracker
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Campfire Tracker
Joined: Feb 2009
Posts: 6,766 Likes: 1 |
Looks like 2950 in a 24in barrel for a 68gr horn in vanilla .223 at 54,000
Will the Montanan withstand the .556 loads at 62,350 psi? Seems you could really get the heavies moving at those pressures mine does. it is one of the AI'd ones, and I feed it nothing but 5.56 pressure loads.
Guns don't kill people, drivers with cell phones kill people.
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Joined: Jan 2009
Posts: 8,900 Likes: 1
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Campfire Outfitter
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I had a Kimber Montana 223 AI for a bit. It was fed loads with pressures estimated to be in the 5.56 range, and worked fine. Nice little rifle.
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Joined: Sep 2006
Posts: 2,550
Campfire Regular
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Campfire Regular
Joined: Sep 2006
Posts: 2,550 |
The 150 ABLR might work nice in the 280 AI !
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Joined: Feb 2010
Posts: 2,839
Campfire Regular
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OP
Campfire Regular
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I am hoping to use 168 class bullets, but the extra speed and shorter OAL would be nice... I will try the 168 Classic hunter and the 168 ABLR Both are supposed to work well at SAMMI length
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Joined: Sep 2006
Posts: 2,550
Campfire Regular
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Campfire Regular
Joined: Sep 2006
Posts: 2,550 |
I'm running the 168 ABLR in my 280 Ackley with Ramshot Magnum...getting about 2960 fps in a 26 inch barrel...they are lethal on elk !
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Joined: Feb 2001
Posts: 193
Campfire Member
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Campfire Member
Joined: Feb 2001
Posts: 193 |
I will definitely give the Classic hunters a chance in the 280ai. What kind of speeds are you getting? I get around 2920 with 7828.
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