Shaun_300 Posted September 23, 2005 Report Share Posted September 23, 2005 They're the same principle, but the WSM's (Winchester Short Magnum) are the shorter versions of the long action calibers like the .300 Win Mag, 7mm Rem Mag, .270 Win... etc. The WSSM (Winchester Super Short Magnums) are shorter versions of the short action calibers like the .223 Rem, .243 Win etc. Quote Link to comment Share on other sites More sharing options...
AJ Posted September 23, 2005 Report Share Posted September 23, 2005 Re: Difference in the WSM and WSSM shells? They are different. The WSM is the Winchester Short Magnum. The WSSM is the Winchester Super Short Magnum. The WSSM is based off of the WSM case but its a bit shorter. Quote Link to comment Share on other sites More sharing options...
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