improved 300 win mag


Well-Known Member
Dec 27, 2003
Billings, MT
Is any one aware of such a chambering and how does it perform?

[ 08-13-2004: Message edited by: bwalker ]


Well-Known Member
May 28, 2003
Townsville Australia
bwalker,I don't have that info,i went straight to my cartridge and it holds 2 grains of water less than a standard 300wm using Lapua brass so i'm told..I use a hat full of vv560 with a 187 BIB in a 13.5 twist barrel 30in long,this gives about 3300fps..this is high pressure for sure..JR..Jeff Rogers


Well-Known Member
Jul 31, 2003
Redding sells dies for the 300WM improved but I don't know anybody that has one. I was interested in this myself but don't know if it is worth the trouble.

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