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So..,steel cases,like what Barnaul etc use,how do they stack up as a single use item,as so far as handling excess pressure??

there is/was a new type of case being bandied around about a year ago..special forces round in 6.8mm ??? has steel head and brass body to withstand much higher pressure than normal. the technology...

well seen as though I appear to use old and worthless methods I shall reply in kind...if your not hot rodding and trying to get silly speed by stoking up cartridges above what manuals say is ok...you...