280 ai

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Hookturnr

X83 MONTHS
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280AI loads
10/13/2014
(1 vote)
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Since scout went live, it's time to get this going

Rem. 721 with a #5 contour Rock at 24"

Nosler Brass

Federal LR Match Primer

180gr. Berger Hunting VLD

59.0 Gr. H1000

2.740" OAL (Hornady Gauge) is .002 off the lands

2755 FPS 1/2MOA or better to 880yds 1/8 MOA at 100

Rifle was built by Kevin Cram at Montour County Rifles. It was throated for the Berger 180's to maximize case capacity and be at the lands when loading. The Dummy Round is set so the beginning of the boat tail is right at the neck/shoulder juncture of the case. I'd tell you some of the groups this thing has shot at distance but you wouldn't believe me anyways....lets just say it's a HAMMER! Kevin deserves the crdit for it though..I'm just the driver...



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hillwatcherXSergeant
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Re: 280AI loads
10/14/2014
(1 vote)
[HR][/HR]I copied "most" of the load data from the old thread before the switch, enjoy. No particular order, but good info.

As always, use at your own discretion and work up.


.280 Ackley Load Data



140 Nosler Ballistic tip
60.0 H4831SC
OAL 3.335
Fed 210M
Nosler 280AI brass



162 A-max
54.0 RL-22
Rem 280 firformed brass
3.475
F210M



Nosler 280 Ackley case
CCI Benchrest Primer
Berger 180 grain VLD
26 inch 1/8 twist barrel
56.5 grains of Rl 22 / velocity is 2860. No pressure signs, excellent accuracy!"



168 gr SMK
0.010 off lands
57.2 gr R-22
federal 210M primers
2900 fps



26" Brux barrel
Nosler brass
162 A-max seated to the lands
61 grains H4831SC
3020fps average for 10 shot string, very low E.S



Nosler Brass
CCI BR2
64gr R-22
139gr SST



57 Grains IMR4831
Rem Brass, CCI Magnums
162 Amax seated 15 thousand off the lands w/ same barrel
2930 fps with ZERO pressure signs



60.5 RL22
162 Amax
2950 fps
About 3/4 moa groups at 100 yds

I worked up in .5 grain increments to 63 grains and both 62.5 and 63 grains got 3150 fps with some flatening of primers but bolt lift was easy and no extractor marks.



Nosler 280 Ackley case
Fed 210
Berger 168 grain VLD
24 inch 1/8.7 twist barrel
59.2g H4831sc / vel = 2811.



24" Bartlein 1/8.7
Hornady 162g AMAX
57.0g IMR4831
Nosler brass
F210
seated -0.020"; off lands
2925 fps



berger 168 hunting vld
59 grains h4831sc
nosler brass
wolf magnum primers



Fireformed Remington brass
CCI Magnum primers
60.5 grains 4831sc,
162's
Getting between 3035 and 3045 fps



H-1000 5-shot groups:
62.5gr / ES 30 / SD 16 / VEL 2851
62.8gr / ES 37 / SD 18 / VEL 2882
63.1gr / ES 8 / SD 4 / VEL 2891
63.4gr / ES 14 / SD 9 / VEL 2887



63.9gr of H-1000 / 162 Amax / Rem Brass / CCI 200
2930fps @ 2000DA.



150 Barnes TSX
Nosler brass (new box)
H4831SC gonna hit 60 grains
Switch up to a F215M primer as I have been using a 210M



160 accubond
Norma brass
Federal 215m primer
58.7 Norma mrp
.015 off lands
2970 fps out of 26" bartlein barrel



160 accubond
Norma brass
Federal 215m primer
59.3 IMR 7828 SSC
.015 off lands
3030 fps out of 26" bartlein barrel



160 accubond
Norma brass
Federal 215m primer
56 IMR 4831
.015 off lands
2886 fps out of 26" bartlein barrel



160 accubond
Norma brass
Federal 215m primer
57.2 gr h4831 sc
.015 off lands
2910 fps out of 26" bartlein barrel



180 Berger VLD
Nosler Brass
Fed. 210 match
59.0 gr. H1000
2750fps groups in the .3's



150 sift scirocco
56.5 imr 7828 ssc 2850 fps
norma brass
federal 215M
seated .020 off lands



168gr SMK
61.3 Retumbo 2745
Nosler Brass
Fed 215M
3.330" OAL



140 Accubond
59g IMR4831
3060 FPS



139 SST
63.0 R22
WLR primer
Rem brass
3270 fps from a 25" Rock Creek 5R.

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saleen62XPrivate
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Re: 280AI loads
06/20/2015 Last edited 01/05/2016 by saleen62
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168 gr Berger
Nosler brass
59 gr RL-22
CCI-250 mag. Primers
Just touching the lands
I think I am right at 2900 fps. (Have not had time to chrono
Berral is a 25 inch krieger. I will be trying to work up to 60gr and I will report back the results.All rounds used CCI -250 mag. primers.

UPDATE as of 01/02/16 168 GR berger with 59 GR of RL-22 5 shots were 2773 fps SD of 8fps

60 GR of Rl-22 5 shots were 2863 fps SD 21 fps

 
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SheldonN

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Re: 280AI loads
08/09/2015
(1 vote)
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162 amax
62.5g H1000
CCI primer
Remington fireformed brass
2.74" to ogive, touching lands
26" Obermeyer
3000fps

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danielhp89X50 MONTHS
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Re: 280AI loads
10/14/2015 Last edited 10/14/2015 by danielhp89
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140 gr Berger Hunting VLD
Nosler brass
58gr H4350
CCI-200 Primers

3150 FPS

26" Bartliein Barrel

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SheldonN

XFirst Sergeant
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Re: 280AI loads
10/19/2015
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Berger 180g Hybrid

59.7g H1000

2.775" to ogive, 10 thou off lands

CCI200 primers

Remington fireformed brass

26" Obermeyer barrel

2807fps, single digit SD's, shoots bugholes.

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gullbertXPrivate
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Re: 280AI loads
04/14/2016 Last edited 04/14/2016 by gullbert
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My cozy, slow, low pressure load:

180 Scenar-L, COAL 3.425", touching the lands.

Norma and Nosler cases (identical in volume/weight)

CCI 200 LR primers

Viht N560, 56.5 grains (found no pressure at 58 grains, but accuracy was shite, and light pressure signs were starting to emerge).

MV: 820 meters per second, 2690 fps. (slow, I know, but kind on brass and the throat).

Extremely consistent. Last time out, banged steel within 0.3 mils, fifteen shots consecutive at 600m.

Rifle is a 700, lilja barrel, 1:8 twist, 26.4". Built by a highly esteemed smith over here in Norway. He throated it at my request for the 180 Hybrids at 90.6mm/3.567" COAL, but I have a shit ton of the Lapuas and had to see if they work, which they do. They are about 60% of the price of the Bergers, and work extremely well as practice hunting rounds, as their dopplered G7 BC is identical to the ABLR 175 and the new Hornady ELD-X, likely using the same loads.

The next thing on my list is to try Viht n570 or n170 to see if compressed loads of either will yield some more speed, sans pressure in excess. Will update then.

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TLRChadXCorporal
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Re: 280AI loads
04/19/2016
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Are you guys running CIP length mags for 280 ackley or the standard length 300 win mag magazines? I need to order up my bottom metal and don't know if the standard AICS length 300 win mag magazine will work or do I need to go to the CIP length. The heaviest bullet I plan to experiment with is either the 175grn Hornady ELD-X or 180grn Berger VLD.

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SheldonN

XFirst Sergeant
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Re: 280AI loads
04/20/2016
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I'm running PTG bottom metal with AICS 5 round 300 Win Mag magazines. My COAL with 180 hybrids is ~3.485" and I have about 0.1" of extra room in the magazine. A little bending of the feed lips was required to get it to feed, space between the rear section of the lips is 0.415” and the space between the front of the mag feed lips is 0.404".

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TLRChadXCorporal
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Re: 280AI loads
05/04/2016
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Thank you for info. Very much appreciated.

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gullbertXPrivate
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Re: 280AI loads
09/02/2016 Last edited 09/02/2016 by gullbert
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Update on my 280 ackley:
58.4 grains of n560 behind the scenar-l 180 yields me 870metres/second, or 2850fps, thereabouts. Superb precision at 100m, 7mm five-shot groups. This is with norma brass, same barrel as above. Reduced pressure by putting the bullet 0.5mm below the neck/shoulder junction.



n570 gave me high pressure long before I gained any advantage in MV,though the groups were still good at 64 grains. Don't do it.

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Six5riflemanXSergeant
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Re: 280AI loads
09/09/2016
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Has anyone tried the Hornady 162 ELDX in the 280 Ackley? If so what were the results as far as accuracy and velocity?

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TLRChadXCorporal
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Re: 280AI loads
10/17/2016
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Six5rifleman wrote:
Has anyone tried the Hornady 162 ELDX in the 280 Ackley? If so what were the results as far as accuracy and velocity?​
I'm actually loading that bullet now. Hoping to head to the range this week, but work always seems to get in the way. Anyway, once I get a chance to get to the range I'll post up some results.

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Six5riflemanXSergeant
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Re: 280AI loads
10/17/2016
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What powders are you using in your loads? I actually had Copper Creek Ammo Co. load me a couple of boxes for a start plus it will give me a few more pieces of brass. They have always produced very accurate ammo for me without knowing the seating depths. Thanks for the input.

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TLRChadXCorporal
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Re: 280AI loads
10/18/2016
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I'm using Hodgdon H1000 powder. My barrel is 29" so I wanted to use a real slow burning powder.

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Six5riflemanXSergeant
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Re: 280AI loads
10/18/2016
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I've got a 26" Douglas barrel Magnum contour for deer hunting. I have several powders just not H1000.

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TLRChadXCorporal
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Re: 280AI loads
10/18/2016 Last edited 10/18/2016 by TLRChad
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This is my first go with H1000. I may try others when I run out just for comparison purposes. For now though, it's what I'm running. From what I've gathered in research is it may not produce the fastest muzzle velocity, but it is very resistant to temperature swings. That is important to me. The first weekend of deer season could be 50 degrees outside, the last day of the season (10 day season) could be 20 or colder. We see that big, ever greater, temp swings around here (Nebraska). Knowing the powder is stable is important to me.

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forward543XCorporal
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Re: 280AI loads
11/05/2016 Last edited 11/06/2016 by forward543
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I have been using 162 eldm and eldx. 58.5g and 60.0 grains of 4831sc 2.780" to ogive. Cci 450. Both shooting .500 to .750 3 shot, 100 yd average. Eldx was not shooting as well as eldm. 58.5 shooting roughly 1.500 at 300 yds. All prone/ bipod/ rear rest. Velocity unknown. 25.5" pac nor. Used a variation of dan newberry's ocw to find.

Update
Drop from 100 yds to 401 yds roughly 20.5" which should put velocity at 3050 fps. Eldm still shooting better than x.

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powdermonkey4XPrivate
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Re: 280AI loads
01/14/2017
[HR][/HR]
NORMA 280ai brass
Fed 210 primers
62.5gr 2213sc (h4831sc)
162gr eldx
3160fps
Es - 45
Sd - 14
Need some more work (current .8" group). Likely to drop back to around 3000fps.

Berger 168gr VLD hunting
Same component as above
60.5gr 2213sc (h4831sc)
2905 fps
 
Feb 14, 2017
224
8
18
#3
162 d m. 61.4 gr re 26. Nosler brass cci 200 gives best sd so far, wlr gives best group so far. Good groups at .500 with average around .750. 3010 fps out of a 26" barrel. Needs more verifying for accuracy.
 
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