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Joined: Mar 2006
Posts: 20,884
Campfire Ranger
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Campfire Ranger
Joined: Mar 2006
Posts: 20,884 |
I've shot the 280-AI for about 35 years and 90% of that time I shot 140 grain BT's with outstanding results. ......I've switched to 150 grain BT's and have had even better terminal performance....
.....140 grain BT's gave me 3213 fps average with 0.3" groups, but I decided to bump up to 150's and am glad I did.
Care to 'splain?
"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: Dec 2007
Posts: 25,090
Campfire Ranger
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Campfire Ranger
Joined: Dec 2007
Posts: 25,090 |
I shoot the 150BT over H4831SC. Don't recall the charge weight off the top of my head, but believe it is a Mule Deer load that has been posted here several times. Great accuracy.
“Life is life and fun is fun, but it's all so quiet when the goldfish die.”
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Joined: Mar 2006
Posts: 20,884
Campfire Ranger
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Campfire Ranger
Joined: Mar 2006
Posts: 20,884 |
I shoot the 150BT over H4831SC. Don't recall the charge weight off the top of my head, but believe it is a Mule Deer load that has been posted here several times. Great accuracy. May be you could put some effort into remembering the charge weight?
"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: Dec 2007
Posts: 25,090
Campfire Ranger
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Campfire Ranger
Joined: Dec 2007
Posts: 25,090 |
Lol. 60.5 I believe.
I'll check when I get home.
“Life is life and fun is fun, but it's all so quiet when the goldfish die.”
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Joined: Mar 2006
Posts: 20,884
Campfire Ranger
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Campfire Ranger
Joined: Mar 2006
Posts: 20,884 |
I will try that. Last attempt was 55 gr H4831 with awesome accuracy. 60 will put me right where i wanna be.
"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: Oct 2008
Posts: 7,263
Campfire Tracker
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Campfire Tracker
Joined: Oct 2008
Posts: 7,263 |
Running 65 grains with 140 Hornadays and BT at about 3200 fps with good results. I have seen several people say R26 was not as accurate but it has been good for me so far. It might take extra tweaking along with the OAL testing. Sometimes it has responded positively to a hotter primer and also to neck tension. I have not tried crimping but I may when I test R26 in the 375 H&H just to see what it does. This could be a mismatch but maybe not. The 280 AI seems like it is one of those cartridges that you would have to try hard to find a bad load for it. The only caveat is it won't show any pressure signs until you are really pushing it.
"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
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Joined: Feb 2007
Posts: 7,418
Campfire Tracker
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Campfire Tracker
Joined: Feb 2007
Posts: 7,418 |
I've shot the 280-AI for about 35 years and 90% of that time I shot 140 grain BT's with outstanding results. ......I've switched to 150 grain BT's and have had even better terminal performance....
.....140 grain BT's gave me 3213 fps average with 0.3" groups, but I decided to bump up to 150's and am glad I did.
Care to 'splain? My rifle always shot really good groups...there just seems to be a decided preference for 150 grain BT's over 140 grain BT's...the groups are always outstanding. Zero flyers, nice super tight clusters...no surprises...ever. Terminal performance is only subjective, but, assuming similar heart/lung hits, I have many more bang flops with the 150'ss than I did with 140's. If I hit bone in some way, say, punching the shoulder blade, the extra weight appears to hold the bullet together better, with better results. Again, subjective judgement on terminal performance, but I've taken enough with both to notice a difference.
You only live once, but...if you do it right, once is enough.
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Joined: Oct 2010
Posts: 1,364
Campfire Regular
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Campfire Regular
Joined: Oct 2010
Posts: 1,364 |
The BC vendor who screwed me soon went BUST..........might be a lesson there, eh! Duh , Don't Mess with the SNAP !! D : How did you make out getting your KMA converted to hinged floorplate ? - were you able to source the STS bottom metal for that 84L ? Kimber or ??
History May Not Repeat, But it Rhymes.
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Joined: Dec 2009
Posts: 4,638
Campfire Tracker
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Campfire Tracker
Joined: Dec 2009
Posts: 4,638 |
I probably hit more elk with a pickup than you have with a rifle. I have yet to see anyone claim Leupold has never had to fix an optic. I know I have sent a few back. 2 MK 6s, a VX-6, and 3 VX-111s.
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Joined: Oct 2008
Posts: 7,263
Campfire Tracker
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Campfire Tracker
Joined: Oct 2008
Posts: 7,263 |
[quote=handwerk , then for some reason I started getting some pressure signs this summer [/quote]
I wonder what is up with that? Temperature, throat, dirty bore, component change or bad JuJu?
"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
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