Author Topic: Necking up the WSSM  (Read 442 times)

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Offline triggerman

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Necking up the WSSM
« on: January 11, 2006, 06:55:33 AM »
If you have a WSSM and want to make it a real gun that hits harder than your little sister try this. I took mine 223 WSSM and added an 8mm barrel, reamed it with a 8mm-300 (or you can use a 325 wsm reamer) reamed it to the same length as the WSSM case. Necked up my brass, turned my necks (I used the 8mm-300 reamer, it has a tighter neck) and what do i have..... a 325 CORBIN (named after my son)
My test loads were 4350 and 170 gr round nose hornady interbonds
2450 ft per sec and 3/4" groups at 100 yards. I ran out of case for the powder so now I’m trying 3031. No sings of pressure using the 4350.
shooting a Winchester 70 with a 18 1/2" shilen barrel
Reloading dies are just cut 325 WSM dies. :lol: