help?

supercrossbmx69 · December 31, 2010, 04:14 AM

i want to purchase a 7mm WSM but winchester is the only company that makes brass for it and i want lapua or norma so what does it take to neck down 300 wsm to 7mm and are there any advantages/disadvantages?

jimbob86 · December 31, 2010, 08:38 AM

Quote:

what does it take to neck down 300 wsm to 7mm and are there any advantages/disadvantages?

A 7mm WSM sizing die, a sturdy press and some case lube ......... a case trimmer w/ the correct length guage/pilot ........

milo-2 · January 1, 2011, 12:54 AM

It takes more than sizing dies, lube etc. The 300WSM and 270WSM are the same cartridge, brass size. The 7mmWSM is sized different so it will not feed in either of the above chambers.
Be Safe!!

December 31, 2010, 04:14 AM	#1
supercrossbmx69 Junior Member Join Date: November 28, 2010 Posts: 7	help? i want to purchase a 7mm WSM but winchester is the only company that makes brass for it and i want lapua or norma so what does it take to neck down 300 wsm to 7mm and are there any advantages/disadvantages?

January 1, 2011, 12:54 AM	#3
milo-2 Member Join Date: December 27, 2010 Posts: 32	It takes more than sizing dies, lube etc. The 300WSM and 270WSM are the same cartridge, brass size. The 7mmWSM is sized different so it will not feed in either of the above chambers. Be Safe!!