Winchester Brass 300 Winchester Mag Unprimed Bag of 50

Item #:	WINU300MAG
Price:	$46.99 $0.94 per piece Shipping: One flat fee of $12.95 per online order. Exclusions apply. Click for details.
Availability:	Out of stock Login to be notified when it's back in stock
Quantity Limit:	Only 3 WINU300MAG allowed per customer. Duplicates will be canceled.
MPN:	WSC300WMU

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 7 Reviews

Product Information

Winchester unprimed shellcases are engineered to precise tolerances to ensure smooth-feeding and positive chambering. This is not loaded ammunition.

View more Winchester products

Read 7 Reviews - Average Rating: 4.4 stars

Good Brass

By Travis C. on Aug 03, 2020

This brass has been fair for me so far 2 reloads through it and it is holding up well. It came a little out of spec but that was to be expected with the price point.

Win 300wm brass

By Derek S. on Jul 06, 2020

Great service and quick delivery. Had 3 deformed necks in package and had to trash them

Great customer service

By BENJAMIN S. on Apr 23, 2020

I prefer the Winchester brass for my .300 winmag. I feel it's the best overall value for this caliber. Grafs has the best price on it and I appreciate the price break for quantity. They generally have it in stock when most do not and their order fulfillment times are good.

Very good quality

By Heath H. on Apr 22, 2020

I prepped the brass. All of the primer pockets and they were consistent. The necks were good just a few dings from bulk packaging. The body’s were in correct dimensions

300 Win Mag Brass

By Joe P. on Apr 10, 2019

I find the over all quality if the Winchester extremely good very pleased. Thank you.

WIN 300 WM brass

By Eric H. on Apr 07, 2019

Surprised how quality these are. Last bag came with 52 and 51 were good. One had a dent on the shoulder, great product at 1/2 the price of the high end brass

300 Winchester Magnum brass.

By Wayne S. on Feb 13, 2019

I found the 300 Winchester Magnum brass to be of good quality. It sized well and required very little trimming to make proper length. The flash holes required very little reaming. The primer pockets did require uniforming.

1 of 1 customers found this page helpful. Submit your own rating by logging in.