Peterson Brass 284 Winchester Unprimed Box of 50

Peterson Brass 284 Winchester Unprimed Box of 50
Item #:PCC284W
$1.70 per piece
Shipping: One flat fee of $12.95 per online order.
Exclusions apply. Click for details.
Availability:In Stock
Quantity Limit:Only 10 PCC284W 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 24 Reviews

Product Information


Only available at Graf & Sons.

All 50 count listings of 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.

Technical Notes

Average on 5 pieces. 

Overall length: 2.161"

Neck thickness: .0155-.0160"

Base diameter: .499"

Read 24 Reviews - Average Rating: 5 stars

Peterson 284 Winchester Brass

By Roger W. on Feb 14, 2024
Brass looks great. I weighed them all and they were as well matched as any brass I’ve weighed, including Lapua. Grafs packaged it well, so it arrived in perfect shape. I have ordered brass from 2 other companies that didn’t package as well and the nice plastic cases they provide were broken. Very satisfied customer

Peterson 284 brass

By JEFF N. on Jan 13, 2024
Very impressed with the quality of this brass. Very consistent and packaged nicely.

.284 Winchester unprimed brass

By James B. on Jan 09, 2024
First purchase from Grafs and won’t be the last. Online ordering experience was quite good and sellers communication was superb. Shipping box was well packaged and arrived without any issues. Did some basic QC of the brass and am very happy with the uniformity and specification tolerances. Thanks Graf & Sons!


By Andy B. on Jan 04, 2024
Great product and a great place to buy from

Peterson brass

By Scott R. on Nov 29, 2023
Excellent brass ,I'll stick with peterson 284 brass even when lapua resumes production

peterson 284 win brass

By JOHN R. on Nov 22, 2023
this is some prime brass very consistent and the price is at a good price will see how it holds up to multiple hand loads
i have been buying lapua brass but heard a lot of great reviews it is hard to find 284 brass at a decent price Graf as always ships quickly and gets the hard to find calibers

284 brass

By Jonathan H. on Nov 17, 2023
Finally found some of this great brass. Came in a timely manner and in a great package.

Exceptional .284 Brass!

By Clinton G. on Feb 12, 2022
I run my .284's pretty hot and this brass is holding up great. I have 6 loadings through some of it and it hasn't missed a beat. Primer pockets still tight and neck tension is still consistent. I have not annealed them yet and don't see a reason to so far. I love this brass. It is holding up better than my Lapua brass and is a LOT less expensive. Now if only I could find some 6.5 and 300 PRC Petersons brass........ Best stuff I have used so far.

284 Win Peterson

By Tony D. on Dec 05, 2020
Brass is very consistent. Sample of 50 weighed an average of 210.2 grains with a variation of +/-.85 grains. for a total spread of 1.7 grains. Works out to a 0.8% variance in weight. I have seen the same consistency in the Peterson 260 and 6 BR brass I use. Love this brass and I am slowly switching over from the Lapua I have been using.

Peterson Brass

By Kevin P. on Oct 21, 2020
Have this in several cartridges. Very consistent weight.

Peterson .284 brass

By Gary A. on Oct 19, 2020
Beautiful brass. Supplied in a plastic case packed with foam top. Annealed, trimmed, ready to load.

Peterson Brass

By Thom B. on Oct 13, 2020
Top quality, uniform and consistent. Well packaged too. Will buy again.

Peterson .284 Brass

By Ralph L. on Aug 26, 2020
Peterson's makes some of the most consistent brass I have ever used and that includes Lapua and Norma. The best part of the Peterson's brass is no donut from up sizing. Just turn the necks and go! Great product and I have several other calibers of Peterson brass.

Looks real nice

By John L. on Jun 08, 2020
Time will tell how the primer pockets hold up.
Neck's are very consistent, between .0165 to .017
Turned them all to .0125 and sending them to a 1000.
Time will tell..Have some Hydroformed Lapua that I can run a comparison with to see what hold's up better.

284 Peterson

By Franklin V. on May 30, 2020
Great quality, very consistent. The fact they ship them in there own boxes is great!

Peterson 284 Win brass

By Steven G. on May 13, 2020
It may sound like a skipping record here, but what others are saying is just plain true, this is very uniform brass. The neck thickness and weight consistency is second to none. Much better, and easier, than necking up Lapua, and it is no contest against other brass (Norma, Winchester etc...), Peterson brass is the way to go.

Great 284 Brass

By Dorothy G. on Mar 23, 2020
I was very happy with the consistency of the brass.
Very uniform. I will definitely be placing another order in the future.

Great Brass - Peterson

By Richard W. on Feb 26, 2020
Very uniform and nick thick walls. I expect to get many, many firings out of this lot. Can't wait to order more.

Peterson 284 Brass

By Richard A. on Jan 02, 2020
Very uniform including neck thickness. Turned necks to 0.0145" and ALL 100 case necks cleaned up 100%. Great product at a very reasonable price.

Peterson .284 Winchester brass

By Dave N. on Dec 23, 2019
Very uniform. Properly annealed and trimmed.

Peterson 284 Win Brass

By Timothy C. on Aug 12, 2019
I was very delighted by how consistent this brass is. It weights were all very close, neck wall thickness was also very consistent, will be buying again for sure.


By Rich M. on Jun 30, 2019
Measurements are pretty consistent. Looks good.

petersons brass

By Stan S. on Jun 12, 2019
Hands down the best brass for .284 win. Yes better than necked-up Lapua .Far superior to norma,winchester etc. r. Try it, you won't be sorry!

Great .284 Brass

By Chris F. on Jun 11, 2019
This brass is very consistent in both weight and appearance. The necks measure .0165 to 0170 in thickness and they turned nicely. The primer pockets are nice an uniform. I have fired it twice and so far things are look good. I'm ordering more!
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