Peterson Brass 280 Ackley Improved Unprimed Box of 50

Peterson Brass 280 Ackley Improved Unprimed Box of 50
Peterson Brass 280 Ackley Improved Unprimed Box of 50
Peterson Brass 280 Ackley Improved Unprimed Box of 50
Item #:PCC280AI50
$1.34 per piece
Shipping: One flat fee of $9.95 per online order.
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Availability: Out of stock
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Quantity Limit:Only 5 PCC280AI50 allowed per customer. Duplicates will be canceled.
Due to the packaging and shipping process, case necks are often slightly dinged or bent and need to be rounded up and sized to give proper neck tension. New and/or fired cases must be full-length resized or have the expander ball of the sizing die run through the case neck prior to loading.
Read 14 Reviews

Product Information

All Peterson Cartridge casings come in one of their plastic ammo boxes.

Made in the U.S.A.


Warning: Only use Peterson Cartridge Co. casings in firearms in good condition, designed, marked, and chambered for this cartridge. Do not use Peterson Cartridge Co casings for “fire forming” or any other purpose other than what they were designed and tested for. Peterson retains no responsibility for the enclosed casings if they are used outside of the manufacturer’s recommendations.

This is not loaded ammunition.

Read 14 Reviews - Average Rating: 4.9 stars


By Bill D. on Nov 10, 2020
I have a wildcat 280 AI so need to fire form SAAMI brass,. It's nice to do this with brass that's so much more substantial than the Nosler brass I had been using. Clearly a bit thicker and thus case capacity is a smidge lower but my pressures are more consistent...and the velocities jumped (3000 fps) and the groups got really tight: .358" best ever. My load with this brass is 162 grain ELDX/60 grains R23...Needless to say, I won't use any other brass for this gun.

Top notch brass

By Clint M. on Oct 19, 2020
Great quality very consistent love this brass only downfall is the plastic case they come in was broke probably from shipping i will be buying more .


By WILLIAM D. on Oct 15, 2020
Excellent brass quality. I was continously frustrated by Nosler's monopoly on decent brass for the 280 AI. Peterson comes through with a better quality cartridge for slightly less $$. AWESOME!!

280 AI Peterson Brass - Lives up to all the claims.

By Richard B. on Oct 10, 2020
I was surprised to see the necks were annealed, the cases were polished, their weights were within 1.4 grains and there were no body dents. I will run them through a Redding bushing neck die for sizing, then load them for forming to my chamber. I will follow up after my next range session.

Top Brass

By Olen M. on Oct 07, 2020
Excellent quality and packaging. Best I have ever used and cheaper than the industry standard, made in USA!

.280AI brass

By Daniel M. on Oct 07, 2020
First time for Peterson Brass. I found it to be uniform in size. I normally use Nosler but will most likely stay with Peterson moving forward.

280AI Peterson brass

By Bob W. on Sep 27, 2020
Initial measurements are very encouraging as the tolerances are held close. Beautifully packed in shooting boxes, no damaged cases were noticed. Getting ready for neck turning for a tight chamber in my rifle. Walls measure .016 and consistent for taper. Leaves me .0015 per side for neck turn and consistent neck tension. Thanks to Peterson for great quality.

Top Quality 280AI Brass

By Brian B. on Sep 17, 2020
After using 280AI Nosler brass for years, I decided to give Peterson 280AI a try. This brass is best in class in my opinion. I use Lapua in a few other cartridges and this is as good or slightly better quality in my opinion. Very consistent in weight and dimensions. Top notch quality control. Made in USA is a bonus. My first experience with Peterson brass. I will definitely try in other cartridges.

Great brass!!

By Joshua M. on Sep 08, 2020
Nice brass for my 280 ai Christensen arms Ridgeline.

peterson 280 ai

By Jason J. on Sep 04, 2020
excellent brass.

Peterson 280 AI brass

By John M. on Aug 07, 2020
Excellent brass. Consistent weight and necks very uniform. On par or better than Nosler brass and less expensive. Better brass than Norma 280 (which has to be fire formed to AI).
I gave it 4 stars because the necks are not as consistent as their .308 brass.

The New Measuring Stick for Brass

By Benjamin H. on Jul 26, 2020
I bought a Kimber 280AckImp. I decided that I would give Nosler Brass a chance since I'd heard great things and Nosler and Hornady was the only virgin brass options. I wasn't pleased with the quality of the Nosler.
I was very pleased when I was browsing through Grafs and saw Peterson was offering 280AI brass. I had heard great things about Peterson and let me say Peterson lives up to the hype.
First, every box of 50 comes packed in a quality 50rd reusable ammo box with foam to keep each piece of brass from jostling around. Every primer flash hole is very uniform, neat properly head stamped case heads, annealed case necks, and none of my brass was dented or out of round in any way. I weighed each piece and out of the 50 pieces there was no more than .7 grs of variation. I call that consistency and uniform. This brass is in my opinion better than Lapua and those are some tough shoes to fill. In short, Peterson has raised the bar by which all brass should be measured and to top it all off, it's made in AMERICA. Thanks to Peterson for your ever growing selection of first rate products and thanks to Grafs for carrying Peterson products.

Peterson 280ai brass

By Warren S. on Jul 08, 2020
Excellent consistancy. All cartridge weights within 1 grain

Excellent Brass

By Patrick V. on Jun 25, 2020
Have a semi-custom 280 AI that I was struggling with load development. All components were similar to my other rifles (bullets, powders, primers, etc) but the Nosler brass. I run either Lapua or Starline in my other rifles and while the Nosler was nice there was something different enough to make me want to look for a substitute. After almost a year I was happy to see Peterson offer 280 AI brass.

Quality is easily on par with Lapua with the best packing in the industry (ships in 50 round cartridge boxes). Cases were significantly heavier than Nosler and the first box of fifty all easily chambered in my rifle. I had to run the Nosler through a Redding body die to get the same result. Flash holes were very uniform and primers seated nice and snug.

Loaded all fifty with a mild load of IMR 7828 SSC to fire form with the 150gr ELD-X and loaded standard COL and ended up with the best groups I've had with the rifle.

Any product that is less expensive and superior to the benchmark gets my business every time.
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