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Old April 12, 2021, 11:14 AM   #51
stagpanther
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Have 100 pieces of new Nosler inbound. Just need the action now.
Don't suppose you can pm where you found it? ; )
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Old April 12, 2021, 11:45 AM   #52
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Originally Posted by stagpanther View Post
Don't suppose you can pm where you found it? ; )
Done
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Old April 12, 2021, 12:14 PM   #53
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thanks.
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Old April 12, 2021, 02:50 PM   #54
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Stag i dropped it to make sure i wasn't going overboard. I will start upping the charge now to see what happens.
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Old April 12, 2021, 04:52 PM   #55
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Good luck!
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Old April 12, 2021, 05:04 PM   #56
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UPS, after canceling delivery date three times, has updated the info on my paint package--they don't know where it is. So ordered some stuff from Brownells this time, it too will likely be shipped by UPS but maybe it will get here anyway, my "problem" shipments seem to be mostly with stuff originating from Midway, which is ironic since their "nitro" shipping used to get to me very fast.
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Old April 13, 2021, 05:38 PM   #57
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Stag i dropped it to make sure i wasn't going overboard. I will start upping the charge now to see what happens.
Just out pf curiosity--I switched up to H4831 today and the results were pretty much the same, one shot out of each group was a way out deviation in velocity. So my conclusion is that there is either something wrong with my cartridges not being equalized or something in my set-up is changing pretty dramatically with warm up. I notice it's the first shot that usually is the "deviant"--but sometimes it's extra slow, other times it's extra fast. Magpro combined with the 180 to 185 gr VLDs makes for some very impressive velocity and energy, not really behind the 300 wby magnum by very much.
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Old April 13, 2021, 07:42 PM   #58
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We're headed down the same road. The other day when i shot it was drizzling. I don't know if that affected the last shot. I did notice some of my cases have a lot of powder residue on the outside of the neck. Others are spotless.
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Old April 14, 2021, 02:51 AM   #59
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PS--The package with paint mysteriously showed up today (!)--even though it still hasn't been updated on the tracking info. Whatever, just glad to finally have it after 2 weeks. The paint didn't quite match, but it's acceptable IMO. I have truck repair issues to attend to; but as soon as I can I'll whip up some cartridges and see how it runs. The forend extension remains easily removable.


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File Type: jpg IMG_4640.jpg (145.7 KB, 114 views)
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If you’re ever hiking in the woods and you get lost, just look up and find the brightest star in the sky and you’ll know which way space is.
I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk!

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Old April 14, 2021, 04:59 PM   #60
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Couldn't help myself--took a break from working on the truck and got a few shots off--noticed the difference immediately in being able to hold the reticle steady and virtually eliminating any muzzle lift. The only drawback I realize is I now have one less thing to blame for lousy groups.
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Old April 14, 2021, 08:24 PM   #61
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Nice work.
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Old April 14, 2021, 08:57 PM   #62
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Nice work.
It's been a fun one. I won't mention that in my test I still managed one shot that was an outlier.
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Old April 14, 2021, 09:35 PM   #63
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Your scope appears (in my vision) to be a NightForce. Is that correct?
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Old April 15, 2021, 01:32 AM   #64
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Your scope appears (in my vision) to be a NightForce. Is that correct?
It's a simple budget vortex Diamondback tactical 4 x 14, since where I shoot I can only get out to about 375 yds max it's more than enough. I do have a Nightforce SHV which is probably destined for my next MDT project in 7mm STW.
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Old April 15, 2021, 06:16 PM   #65
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Went out and shot a second group, five cartridges of 180 VLD's driven by RL 22. Now that I'm starting to get brass cycled through my new barrel, I'm really enjoying the Redding Competition Bushing Neck sizing die, the 280AI works really well with it. I also like FC's nickle-coated brass a whole lot. I had to take my truck into the shop--so I had to make do shooting off the hood of my Pontiac Vibe. The five shot group would have been stellar (for me) had I not pulled the one shot. I do think the longer forend makes for more accurate shooting.



Attached Images
File Type: jpg 280AI 180 VLD 59.6 RL22.jpg (126.5 KB, 112 views)
File Type: jpg IMG_4685.jpg (94.0 KB, 110 views)
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Old April 21, 2021, 06:37 AM   #66
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In times like these I'm thankful that 7mm isn't all that popular in the US, just scored a 500 count box of these pills.

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If you’re ever hiking in the woods and you get lost, just look up and find the brightest star in the sky and you’ll know which way space is.
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Old April 24, 2021, 09:33 AM   #67
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My AR patience coefficient has run out temporarily, so I'm going to try these bullets with RL23.
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Old April 24, 2021, 01:18 PM   #68
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Went out this morning and shot a couple of groups of my 6mm ARC (66 gr flatbase) and the new 190 vlds in the 280 AI. There was a gusty crosswind varying from 10 t0 20 mph and that seemed to push the small ARC bullets around easily (though bad technique may have contributed some to it.

This is the low end charge of the 190 vlds out of my 280 AI after I got on paper. The very first shot for some reason flew wide at a higher pressure/velocity than the rest of the group, not sure why that is, maybe I didn't catch extra powder while loading the cartridge or some other factor cranked up the start velocity. When I adjusted the ave vel and ST dev minus the first shot the group was quite consistent. The vel data looks rather anemic for serious long range shooting at first glance--but when I plugged it into a calculator using a G7 BC I was rather surprised to see it would remain supersonic past 1500 yds and the energy well over "deer-approved" to 1000 yds. Drop at 1000 yds looks around 28 MOA. Not bad for a relatively soft-recoil low-end charge, I could see shooting this all day with no worries of shoulder tenderizing. I'm not sure how well the bullet would remain stabilized, though. The excellent Criterion match barrel has an 8 twist and berger's calculator says that should be good enough.



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File Type: jpg 280 AI 190 VLD 55.4 RL 23 .jpg (83.6 KB, 94 views)
File Type: jpg 280 AI 190 VLD 55.4 RL 23 target .jpg (104.1 KB, 94 views)
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If you’re ever hiking in the woods and you get lost, just look up and find the brightest star in the sky and you’ll know which way space is.
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Last edited by stagpanther; April 24, 2021 at 01:29 PM.
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Old April 26, 2021, 12:30 PM   #69
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Stagpanther, This from another site

https://forum.accurateshooter.com/th...4-win.3999348/
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Old April 27, 2021, 04:49 AM   #70
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Thanks for that roper--doesn't surprise me that the 284 win crowd is also taking a close look at this bullet--it's a "threshold breakthrough" design. Thank God for Brian Litz who is obsessed with designing optimal bullets at affordable prices! I have a 284 win AR I built and I may try it out just out of curiosity, though I'll probably have to hand feed it as I doubt it would clear the magazine or mag well of the receiver. The barrel is only 22" too. Theoretically, the 280 AI should have a distinct advantage in case capacity and seating flexibility. And, crazy as it sounds, the 280 AI is one of the most elegant looking cartridges there is--dare I say it, it's one darn sexy-looking cartridge.

I still have some more charge weights to go and might get up to the "magic 2,750 fps", but it's hard to move on when you hit a node like this.
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Old April 27, 2021, 04:56 PM   #71
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I shot the next two charge weights today and easily reached 2750 fps with a mid range charge, I still have four more and 2+ grains to go, and my anticipated 100% fill charge should still be well below max pressure, so I'm guessing I'll easily hit 2,800 fps at least.
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Old April 28, 2021, 12:15 PM   #72
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I went all the way up to 57.8 grs--still lots of case capacity to spare.
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If you’re ever hiking in the woods and you get lost, just look up and find the brightest star in the sky and you’ll know which way space is.
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Old April 28, 2021, 12:26 PM   #73
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stagpanther, My 280AI and 284 (long action)have Lilja 27" barrels. The 280AI been shooting 175gr ABLR/180gr Berger VLD using R-26 @ low 3000fps
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Old April 28, 2021, 01:46 PM   #74
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Unfortunately I don't have RL 26--it has been unobtanium for quite some time. I do have lots of RL 23 and so far it seems quite nice. My barrel and the 190 vlds seems to like it too.
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Old April 28, 2021, 05:31 PM   #75
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Keep posting Stag...I'll keep reading...and waiting for my barreled action. All else is ready.
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