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Joined: Feb 2007
Posts: 16,512
Campfire Ranger
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Campfire Ranger
Joined: Feb 2007
Posts: 16,512 |
I ran my old RM w 160-162s at 2860 - would run 150 class in a 280/AI.
My 270s always worked great w 150 NBTs. Not much you can't do w any of them if the shooter does their part. I like KISS and would run a 280 for what it is or just buy a Rem Mag and shoot heavies.
It's all gack that's fun to debate. The RM loaded to the hilt is definitely less pleasant than a 280/AI. Never a bad thing.
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Joined: Jul 2006
Posts: 1,357
Campfire Regular
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Campfire Regular
Joined: Jul 2006
Posts: 1,357 |
Don't speculate when you don't know, and don't second guess when you do.
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Joined: Jul 2006
Posts: 1,357
Campfire Regular
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Campfire Regular
Joined: Jul 2006
Posts: 1,357 |
16bore,
with the 62g of RL22 I'm getting 3050 fps. What barrel length?
Don't speculate when you don't know, and don't second guess when you do.
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Joined: Sep 2005
Posts: 6,375
Campfire Tracker
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Campfire Tracker
Joined: Sep 2005
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Joined: Jan 2011
Posts: 224
Campfire Member
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Campfire Member
Joined: Jan 2011
Posts: 224 |
I get 2925 fps using IMR7828 with a 160 NPT out of a 1:8.5 twist 23" rock barrel. This is .5 grains UNDER Noslers max load.
NRA Life Member
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Joined: Feb 2010
Posts: 17,927
Campfire Ranger
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Campfire Ranger
Joined: Feb 2010
Posts: 17,927 |
What kinda speeds are you fellas getting with ~120-140's? My understanding is anything under 150's in a 280AI make it more or less a funky looking 270.....
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Joined: Mar 2004
Posts: 6,065
Campfire Tracker
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Campfire Tracker
Joined: Mar 2004
Posts: 6,065 |
Geez.
cooler looking whilst 50fps faster...that's book--hoping things don't go nostalgically anecdotal in this thread with that 270 mention...
24" here M-700 TI
63g MRP 3175 140NBT
64g MRP 3200+
last load is Nosler book max--BTW, p 349 of Nosler 7 has the heading "280 Remington Mag" rather than 280 Remington AI...:) One has to wonder if it was a maybe...
150s are good elk bullets, though
Defend the Constitution
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Joined: Feb 2010
Posts: 17,927
Campfire Ranger
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Campfire Ranger
Joined: Feb 2010
Posts: 17,927 |
Yeah, for sure. Don't wanna go down that road. Nothing to see here. I try to talk myself outta building a 280AI about once a week.
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Joined: Mar 2004
Posts: 6,065
Campfire Tracker
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Campfire Tracker
Joined: Mar 2004
Posts: 6,065 |
karma...nothing you can do but delay it with a 7x57 build on a small ring
Defend the Constitution
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Joined: May 2003
Posts: 16,971
Campfire Ranger
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Campfire Ranger
Joined: May 2003
Posts: 16,971 |
I get 2975 fps out of my 280AI with 160 grain AB's, and 60 grains of RL22.
nice !
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Joined: Sep 2005
Posts: 6,375
Campfire Tracker
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Campfire Tracker
Joined: Sep 2005
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16bore, with 64g of RL 22 I see 3150 w/140 TTSX's
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Joined: Feb 2010
Posts: 17,927
Campfire Ranger
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Campfire Ranger
Joined: Feb 2010
Posts: 17,927 |
Gotcha. Just fiddlin with figures......
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Joined: Mar 2006
Posts: 20,879
Campfire Ranger
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Campfire Ranger
Joined: Mar 2006
Posts: 20,879 |
Agreed. I have been trying to wrap my head around the 280 AI for over 30 years....Those here will have to forgive me if the cartridge causes me to yawn. Yawns are acceptable. 280 AI will perform the same as a 280 at the least. So, in the long run, you ain't lost nothing except a few dollars.
"I never thought I'd live to see the day that a U.S. president would raise an army to invade his own country."
Robert E. Lee
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Joined: Mar 2006
Posts: 20,879
Campfire Ranger
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Campfire Ranger
Joined: Mar 2006
Posts: 20,879 |
Love that gunmetal Leupold!!
"I never thought I'd live to see the day that a U.S. president would raise an army to invade his own country."
Robert E. Lee
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Joined: Mar 2006
Posts: 20,879
Campfire Ranger
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Campfire Ranger
Joined: Mar 2006
Posts: 20,879 |
I have had every strain of 280 Improved cartridges in bolts & single shots. The reason that I have an AI now is due to the desire for the rifle it is chambered in. I liked the rifle. So, I would have chosen it whether it was a 280 AI, Remington, Gibbs or JDJ.
"I never thought I'd live to see the day that a U.S. president would raise an army to invade his own country."
Robert E. Lee
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Joined: Jan 2006
Posts: 18,453
Campfire Ranger
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Campfire Ranger
Joined: Jan 2006
Posts: 18,453 |
The 7mm JRS will run the arse off of all of em............ 
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Joined: Feb 2010
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Campfire Ranger
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Campfire Ranger
Joined: Feb 2010
Posts: 17,927 |
JRS can't touch 7mmx577 TRex...
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Joined: Feb 2003
Posts: 18,854
Campfire Ranger
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Campfire Ranger
Joined: Feb 2003
Posts: 18,854 |
I have one of those and you are right.
Sent from my Dingleberry Handheld Wireless
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Joined: Mar 2005
Posts: 5,228
Campfire Tracker
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Campfire Tracker
Joined: Mar 2005
Posts: 5,228 |
My 24" .280 AI shoots the 140 TTSX at 3205fps from 63gr of R22. Groups are well under MOA a d brass is on its 5th firing with no trimming and tight primer pockets.
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Joined: May 2005
Posts: 7,075
Campfire Tracker
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Campfire Tracker
Joined: May 2005
Posts: 7,075 |
My 24" .280 AI shoots the 140 TTSX at 3205fps from 63gr of R22. Groups are well under MOA a d brass is on its 5th firing with no trimming and tight primer pockets. That is 300fps more than any on my 7x57's would do and they performed great in the field. A little flatter trajectory and another 569FPE, that, is significant. John
When truth is ignored, it does not change an untruth from remaining a lie.
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