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I’ve got a 280AI with a long throat for heavy bullets. Looking for a good load to shoot 160 grain partitions. When they are touching the lands the base of the bullet is seated to about half the depth of the shoulders which increases case capacity some. Any help would be appreciated, especially with powder recommendations. Thanks in advance.
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I was using RL-23 with 168 grain VLD’s with good results. Check this out: https://forum.nosler.com/threads/rl23-in-the-280ai.31041/
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Herschel,
Sorry, but haven't tried RL-23 in the .280 AI.
Did my last article on handloads for it a couple years ago, and per my usual research of all published data didn't find 23 among the leaders in velocity--which despite what many handloaders claim is still the major obsession.
In my tests Reloder 26, Ramshot Magnum and IMR7977 were the winners with 162-168 grain bullets, but that was 2-3 years ago when we could buy any powder.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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I know it's not the projectile you referenced, but, a hunting buddy has received excellent accuracy results from 7828SSC/150TTSX @ 3000fps. There's probably 100fps left on the table so to speak, but, it shoots SO good there that he's settled on it.
That might be a good powder to try with the heavier projectiles you're considering is all I meant to say.
I can walk on water.......................but I do stagger a bit on alcohol.
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I've reposted this thread many times. Great starting point for me. 280AI with RL26
FÜCK Jeff_O!
MAGA
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Check it against Nosler data (online) but I believe I was around 61 or 61.5 grains of 7828 with the 160 partition and 160 accubond.
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Here be dragons ...
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Don’t be afraid to give Ramshot Magnum a try.
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Don’t be afraid to give Ramshot Magnum a try. I tried Magnum in my latest .280 AI with 160s, and while it resulted in very good accuracy, it was also 100-150 fps slower in velocity than other powders. In fact it got basic .280 Remington velocities.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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Campfire 'Bwana
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The powders that work best in mine with 160 NPs are H4831sc at 59 grains and R-26 at 61 grains.
A wise man is frequently humbled.
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Don’t be afraid to give Ramshot Magnum a try. I tried Magnum in my latest .280 AI with 160s, and while it resulted in very good accuracy, it was also 100-150 fps slower in velocity than other powders. In fact it got basic .280 Remington velocities. Did you use standard or magnum primers?
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Magnum primers, of course.
The problem was not being able to get enough Magnum in the case to reach optimum velocity with that bullet weight.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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I used the Nosler data on 120's / Rl17, this may be load of interest later down the road.. I really think it's my most accurate load. FYI
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280 ai / 150 NAB / H4831. https://imgur.com/TQaGyhi
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Magnum primers, of course.
The problem was not being able to get enough Magnum in the case to reach optimum velocity with that bullet weight. What kind of velocity were you trying to get? I’ve got a long throat so should have enough case volume to hopefully get me there. I can easily fit 65.0 of RS Magnum. Western’s published data goes to 68.0 grains with the 7mm RSAUM. I’m thinking somewhere around 2950, but just want to make sure I’m in the ballpark. Noslers data has always seemed a bit hot for the 280AI.
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I've had good luck with 150 gr Accubonds over a stout load of Vihtavuori N560.
Dyin' ain't much of a livin' boy - Josey Wales
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Mine likes h1000 with 168g ablrs. The h1000 gives a good full density without being so full that the soft 168s deform when seating. Accuracy was great once I found the right setting depth. Speed was 2880 from a 24" Ridgeline. You could probably get a bit more with a 160.
Bb
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Herschel,
Sorry, but haven't tried RL-23 in the .280 AI.
Did my last article on handloads for it a couple years ago, and per my usual research of all published data didn't find 23 among the leaders in velocity--which despite what many handloaders claim is still the major obsession.
In my tests Reloder 26, Ramshot Magnum and IMR7977 were the winners with 162-168 grain bullets, but that was 2-3 years ago when we could buy any powder. Is the component shortage causing you issues for the articles you are working on? I’ve been wondering about that for a while.
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hanco,
A little, but not much. Stocked up considerably after the previous "shortages." so have a variety of powders, bullets and primers on hand.
In a way, I don't want to call them shortages, but buying panics. Like all the previous ones, they're caused by shooters buying everything they can find, whether for themselves or to resell. As before, manufacturers are cranking out all they can, but shooters are buying it all up as soon as it appears, whether in stores or on the Internet.
As evidence of this, there are also a LOT of handloaders in Europe, and none I know have any problem buying components, because there hasn't been the poltically-based panic over potential availability problems. Of course, many Americans might not believe this because they think ALL European countries have extreme anti-gun laws--which is NOT true. Hunted with a French gun writer in Finland a few years ago, who not only owns around 50 centerfire rifles (including an AR-15) but a bunch of handguns, including semi-autos. Can provide many other examples.
In other words, the present "shortage" is our own fault.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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hanco,
A little, but not much. Stocked up considerably after the previous "shortages." so have a variety of powders, bullets and primers on hand.
In a way, I don't want to call them shortages, but buying panics. Like all the previous ones, they're caused by shooters buying everything they can find, whether for themselves or to resell. As before, manufacturers are cranking out all they can, but shooters are buying it all up as soon as it appears, whether in stores or on the Internet.
As evidence of this, there are also a LOT of handloaders in Europe, and none I know have any problem buying components, because there hasn't been the poltically-based panic over potential availability problems. Of course, many Americans might not believe this because they think ALL European countries have extreme anti-gun laws--which is NOT true. Hunted with a French gun writer in Finland a few years ago, who not only owns around 50 centerfire rifles (including an AR-15) but a bunch of handguns, including semi-autos. Can provide many other examples.
In other words, the present "shortage" is our own fault. Thanks for posting this ^ ^ ^ Especially the last sentence. During the big 22 LR " shortage ", I saw the people in line waiting for the doors to open, the gun counter people selling to their "friends " , etc. etc. and would relate that to others, and got called the worst of a liar and way worse. I guess it's easier to accept that a secret gubmint agency was filling up clandestine warehouses with rim fire ammunition I never did get to get any of those hundreds of 22 LR firearms that everybody swore they were throwing away Edit- I meant to add that those I saw paying $80.00 for a $30.00 wally world brick of promo 22 were as much of the problem as anything else
Last edited by Ranger99; 02/04/22.
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hanco,
A little, but not much. Stocked up considerably after the previous "shortages." so have a variety of powders, bullets and primers on hand.
In a way, I don't want to call them shortages, but buying panics. Like all the previous ones, they're caused by shooters buying everything they can find, whether for themselves or to resell. As before, manufacturers are cranking out all they can, but shooters are buying it all up as soon as it appears, whether in stores or on the Internet.
As evidence of this, there are also a LOT of handloaders in Europe, and none I know have any problem buying components, because there hasn't been the poltically-based panic over potential availability problems. Of course, many Americans might not believe this because they think ALL European countries have extreme anti-gun laws--which is NOT true. Hunted with a French gun writer in Finland a few years ago, who not only owns around 50 centerfire rifles (including an AR-15) but a bunch of handguns, including semi-autos. Can provide many other examples.
In other words, the present "shortage" is our own fault. Exactly, Viht powders, Lapua brass and bullets are all good and available. Past supply issues has prompted me to keep ~ 2 years of supply on hand.
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