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Joined: Feb 2006
Posts: 53
Campfire Greenhorn
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OP
Campfire Greenhorn
Joined: Feb 2006
Posts: 53 |
I am requesting your ideas for a .280 Rem. LONG ACTION build for 7MM VLDs in the 168-180 grain range and 2800+ velocities (if possible). I already have completed 6.5X284 with the 140's and a .243 with the 105-107's....so I was entertaining a NON-MAGNUM caliber to shoot the Higher B.C. 168-180's to fill the "bullet weight step" that I have created in my mind...lol. Any thoughts or load data, twist rates, etc. will be considered! Thanks!
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Joined: May 2008
Posts: 16,540
Campfire Ranger
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Campfire Ranger
Joined: May 2008
Posts: 16,540 |
I'd suggest the 280AI.
9 twist.
At or near 3000 with 162-168gr bullets.
VERY good reports have been heard about the 162 Amax.
Last edited by nsaqam; 05/15/11.
The Chosin Few November to December 1950, Korea.
I'm not one of the Chosin Few but no more remarkable group of Americans ever existed.
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Joined: Dec 2002
Posts: 27,692
Campfire Ranger
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Campfire Ranger
Joined: Dec 2002
Posts: 27,692 |
Another vote for the .280AI with a 9 twist and the 162 A-Max.
Member: Clan of the Turdlike People.
Courage is Fear that has said its Prayers
�If we ever forget that we are one nation under God, then we will be a nation gone under.� Ronald Reagan.
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Joined: Aug 2005
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Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2005
Posts: 11,358 Likes: 1 |
That 6.5 with 140s is good for a lot of stuff. I understand though as my son is currently building a 9 twist 7mm Rem mag to run the 180s.
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Joined: Mar 2006
Posts: 14,579 Likes: 8
Campfire Outfitter
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Campfire Outfitter
Joined: Mar 2006
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I'm currently running a factory 9.5" twist .280 and pushing the 162AM at 2945fps. It works 
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Joined: Jan 2008
Posts: 158
Campfire Member
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Campfire Member
Joined: Jan 2008
Posts: 158 |
Been doing a bit of looking at doing a 280 AI myself and ran into kind of an interesting question regarding the original ackley specs not being the same as the SAAMI specs that Nosler did a few years ago. Which version are most guys doing and why?
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Joined: Feb 2004
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Campfire Tracker
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Campfire Tracker
Joined: Feb 2004
Posts: 3,402 |
Nsaqam nailed it. Looking at doing another 280AI with a nine twist this time and slinging nothing but 162Amaxs. That being said my current 10 twist 280AI has had no problems with 162Hornadays and 168VLDs.
Rick
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Joined: Feb 2006
Posts: 53
Campfire Greenhorn
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OP
Campfire Greenhorn
Joined: Feb 2006
Posts: 53 |
Why the AI......Does the standard case NOT have enough capacity to push that round adequately?
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Joined: Dec 2008
Posts: 5,185
Campfire Tracker
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Campfire Tracker
Joined: Dec 2008
Posts: 5,185 |
I'm currently running a factory 9.5" twist .280 and pushing the 162AM at 2945fps. It works Jordan, What rifle is this and how long is your tube? You mind sharing your load? That's smokin for a 162 in a standard .280, No? Must be the UBC...
Last edited by CLB; 05/16/11.
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Joined: May 2008
Posts: 16,540
Campfire Ranger
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Campfire Ranger
Joined: May 2008
Posts: 16,540 |
Why the AI......Does the standard case NOT have enough capacity to push that round adequately?
The 280AI has a 65Ksi SAAMI MAP which means that not only is there a small case capacity advantage but there is also a 5Ksi pressure advantage over the regular 280 Rem. Less trimming and factory cartridges and brass are available.
The Chosin Few November to December 1950, Korea.
I'm not one of the Chosin Few but no more remarkable group of Americans ever existed.
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Joined: Feb 2007
Posts: 3,201
Campfire Tracker
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Campfire Tracker
Joined: Feb 2007
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I'm running 168 VLD's at about 2975-3000 from my 25" 9.5 Tw .280AI. That would be your best bet IMO. Slighty more case capacity and pressure but also, no trimming. Win-win. Non magnum.
Lee
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Joined: Mar 2006
Posts: 14,579 Likes: 8
Campfire Outfitter
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Campfire Outfitter
Joined: Mar 2006
Posts: 14,579 Likes: 8 |
I'm currently running a factory 9.5" twist .280 and pushing the 162AM at 2945fps. It works Jordan, What rifle is this and how long is your tube? You mind sharing your load? That's smokin for a 162 in a standard .280, No? Must be the UBC... Rifle is a Ruger Hawkeye S/S with 22" tube (with DBC  ). Load is 60gr 7828ssc, Fed210 primer, RP brass. It may be smokin' a little, but the brass is going strong on its 11th firing, and I get no pressure signs...
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Joined: May 2008
Posts: 16,540
Campfire Ranger
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Campfire Ranger
Joined: May 2008
Posts: 16,540 |
Wow!
Proof that each rifle is unique.
That load is 3.5gr heavier and 300fps faster than any 162gr load I could find on Loaddata.
I'm gonna have to get me some UBC.
The Chosin Few November to December 1950, Korea.
I'm not one of the Chosin Few but no more remarkable group of Americans ever existed.
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Joined: Mar 2010
Posts: 74
Campfire Greenhorn
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Campfire Greenhorn
Joined: Mar 2010
Posts: 74 |
had a 280 rem built on a pre 64 mod 70 back in 1976 to shoot 200-300-600-1000 yard targets.the barrel is 29 1/2 long.it is a good caliber and it can stan on it own .george
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