- Metallic Reloading
- Rifle Brass
- 375 Remington Ultra Mag
Bertram Brass 375 Remington Ultra Mag Unprimed Box of 20
New, unprimed brass. Imported from Australia. This is not loaded ammunition.
Read 3 Reviews - Average Rating: 4.3 stars
By Kenton P.
on Jan 13, 2020
200 ordered, 200 received. No dings, dents, burrs, or bad pieces. 96% weighed between 278 and 281gr with a few 277 and 282. Bumped in neck mandrel and loaded up perfect.
By David E.
on Jun 24, 2019
I ordered 100 of the 375 rum brass and I am pleasantly surprised. I weighed some and the spread was only 3 grains. Lapua 338 lapua brass has that much and these cases are actually bigger and hold more powder. In hardness they are similar to Winchester brass. I will definitely buy again. I was skeptical at first but I am a believer now!! As for the primer pockets? Perfect. I loader wlrm primers with a rcbs priming tool that screws to the bench with the cammed primer tube and about a foot long lever handle. The primers were snug but went to bottom without crushing. Just the way you want. I am loading R25 and approaching maximum with a 300 grain bullet and no ejector marks and only .0005 expansion. What is not to like? Also this is the only component brass available for this boomer
By Sean A.
on Dec 11, 2018
Brass checked out all good till tried to prime all primer pockets to small to take a primer. So disappointing.
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