The Firing Line Forums - View Single Post - How to conv. 30-06 brass to 358Win brass?

HiBC · July 17, 2009, 01:48 PM

First,Congratulations on your rifle.I think you have a real prize there.

Now,on reforming your LC brass.

The .358 is already challenged for case capacity versus bore dia.It is a great cartridge,but the limiting factor is case capacity.The LC brass has thicker walls,so you will lose some capacity.

Ordinarily,when I form cases,I use virgin brass.Once fired is typically harder,and is more prone to cracking/failing in the process.

Then,lets not forget you are also going to have to swage the crimps out of the primer pockets.

You CAN do it,I don't suggest you can't.

But I bet there is someone who shoots Hi-power targets with an M-1 Garand who would very much like to have your LC 30-06 brass,and would give you money for it.

Then you could buy new .358 brass.

Ammo mfgs don't run .358 every week,so it may not always be on the shelf,but they do still make it.
Good luck

July 17, 2009, 01:48 PM	#11
HiBC Senior Member Join Date: November 13, 2006 Posts: 8,350	First,Congratulations on your rifle.I think you have a real prize there. Now,on reforming your LC brass. The .358 is already challenged for case capacity versus bore dia.It is a great cartridge,but the limiting factor is case capacity.The LC brass has thicker walls,so you will lose some capacity. Ordinarily,when I form cases,I use virgin brass.Once fired is typically harder,and is more prone to cracking/failing in the process. Then,lets not forget you are also going to have to swage the crimps out of the primer pockets. You CAN do it,I don't suggest you can't. But I bet there is someone who shoots Hi-power targets with an M-1 Garand who would very much like to have your LC 30-06 brass,and would give you money for it. Then you could buy new .358 brass. Ammo mfgs don't run .358 every week,so it may not always be on the shelf,but they do still make it. Good luck