.300 WSM or .300 Win Mag

[C Ward]

Can't get the velocity with a 338 WM to take advantage of the BC on heavy 338s , even with 250s a WM is at 2550 ish .

With a WM based cartridge a 7 with the .8 BC heavies lays waste to pretty much all else .

[smchop]

Can't get the velocity with a 338 WM to take advantage of the BC on heavy 338s , even with 250s a WM is at 2550 ish .

With a WM based cartridge a 7 with the .8 BC heavies lays waste to pretty much all else .

Sorry, I actually meant a .300 Win Mag, not the .338 Win mag.

[smchop]

So, can a 7mm WSM be built on a short action to shoot the 180's or would it need a LA and LA mags?