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Berger 300wm ammo
- Thread starter Brush buster
- Start date
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Mrhounddog
Well-Known Member
- Joined
- Dec 23, 2013
- Messages
- 58
What brass does Berger use in their ammo?
kfreeze
Well-Known Member
The stuff a friend was shooting today was norma brass. Had norma headstamp on it.
kfreeze
Well-Known Member
The 185 grn classic hunter 300 wm loads my friend was shooting today were great. He was putting bullets 1/2- 1"apart at 200 yds. He is not a benchrest shooter either. He is a consistant moa shooter I would say.
Comancheria
Well-Known Member
If memory serves me, I have read at various points on the internet the following:
1. The brass is made by Lapua.
2. Lapua never made .300 Winnie brass.
3. The brass was once made by Lapua but no longer.
4. The brass that used to be made by Lapua was actually made for Lapua by Norma.
What's a mother to do? What is astonishing to me (and almost everything is) is that large corporations that manufacture stuff for other large companies can keep it so close to the vest.
I found two Youtube videos concerning Berger factory ammo--in one of which, the guy weighed 6 factory loads from the same box. They weighed 512.9, 512.9, 512.8, 512.6, 513.0, and one "flyer" that I think came in at 512.0. May be a little off on that, but in no case did any of them vary by as much as a full grain.
That would seem to indicate fairly consistent brass. You know the bullets were within a fraction of a grain, ditto, the primers--and the powder weight was almost certainly quite close. So the cases must have been as well.
1. The brass is made by Lapua.
2. Lapua never made .300 Winnie brass.
3. The brass was once made by Lapua but no longer.
4. The brass that used to be made by Lapua was actually made for Lapua by Norma.
What's a mother to do? What is astonishing to me (and almost everything is) is that large corporations that manufacture stuff for other large companies can keep it so close to the vest.
I found two Youtube videos concerning Berger factory ammo--in one of which, the guy weighed 6 factory loads from the same box. They weighed 512.9, 512.9, 512.8, 512.6, 513.0, and one "flyer" that I think came in at 512.0. May be a little off on that, but in no case did any of them vary by as much as a full grain.
That would seem to indicate fairly consistent brass. You know the bullets were within a fraction of a grain, ditto, the primers--and the powder weight was almost certainly quite close. So the cases must have been as well.
Elkhunter007
Well-Known Member
On sale today at Midway USA.
https://www.midwayusa.com/product/7...ster-magnum-215-grain-hybrid-target-box-of-20
https://www.midwayusa.com/product/7...ster-magnum-215-grain-hybrid-target-box-of-20
Comancheria
Well-Known Member
I bought mine at Bruno Shooter's Supply in Phoenix--.36 cents a box less than Midway. Not that that is significant, but Midway is so big they won't do business for cash. Don't ask me why, but I prefer to send a personal check and have the vendor ship upon funds clearing. But they would rather have the convenience of doing it their way than save the percentage the banks charge them. Not that I don't have credit cards and excellent credit--its just that I am an old fart and cannot understand the concept of not accepting cash. 
Russ
Russ
Comancheria
Well-Known Member
Brush buster: Since this is your thread, if you consider this next question a hijack, please say so, and I will remove the post--but I think the question is not too far out in left field because it involves the same caliber and bullet we are discussing:
Let's say I measure the COAL of the Berger factory 215 grain ammo. Then let us further say that I shoot it and have the good luck that it is perfect for my rifle.
Now, regardless of who makes the brass for Berger, I full-length resize the brass and load the Berger bullets to a depth sufficient to achieve the exact same COAL. Can I then say that I have chosen the exactly correct bullet seating depth?
(I realize that I have not duplicated the powder charge or the primer, and those variables might or might not affect velocity and accuracy--my question relates to proper COAL for that rifle.)
Thanks very much,
Russ
Totoro
Well-Known Member
My experience with the original decor box and current yellow-submarine in 300WM/215 combo echo others that have replied.
The MV in my rifles are running 60ish FPS faster due to 28" barrel.
Use with confidence!
The MV in my rifles are running 60ish FPS faster due to 28" barrel.
Use with confidence!
Russ,
That will get you close but not an exact match as different lots of bullet may have different base to ogive (BTO) length. You can use a comparator to measure cartridge BTO on the factory rounds, and then set your seater die to seat the bullets at the same cartridge BTO.
Comancheria
Well-Known Member
Thanks, Kimber. Got it (I think.)
No, just the factory action and having moved it to a McMillan GameHunter (shortened action screws, shortened BDL internal mag to ensure free float).
Maybe it was just luck, but after having tried 3 other groups with Hornady Match that was shooting horribly, the Berger ammo was a great thing to stop on. Hope to get out next weekend for some more rounds with it and to see if its repeatable.
