Peterson 300 Win Mag "Long" Brass Available

IRBT2

Member
Joined
Mar 2, 2021
Messages
18
Location
Port Orchard, WA
I just received some Peterson long brass and just tested a piece to see if it would chamber in both of my 300 win mags, my Browning xbolt would not close on this brass but my Sako 85 did easily. I will have to see how much the brass I have shot in the Sako has stretched when I have time.
 

ThrdKllr

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Joined
Jul 18, 2019
Messages
231
Location
La
I gained.0025-.003 from new Long to fire formed Long in my Weatherby. Accuracy has been fantastic and it is very consistent brass. Necks seem kinda soft but that probably helps keep neck tension consistent. This is a 3 shot group cooling the barrel down between shots. .308 was tared into the caliper to get CTC. B3E1F84F-7CFB-47FA-90D0-64D53B6E26DE.jpeg
 

martinakl

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LRH Team Member
Joined
Nov 27, 2013
Messages
1,939
Location
SW IDAHO, 83713
Thought I’d bump this up again. Seems they have restocked the 250 count. 50 count available too.

So many good choices with ADG, Lapua, and Peterson 300 Win Brass. Not that they’re always available but nice options these days.

Yes, Lapua is real. :)
4F1FD14D-A5E6-4B1A-AAD0-9C63010D8E48.jpeg
 

ThrdKllr

Well-Known Member
Joined
Jul 18, 2019
Messages
231
Location
La
I bought a box of Herters 300 WM ammo and it will have to stretch.026 to fit the chamber when fired. Seems like a lot to me.
 
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