Re: 6.5 allen mag load data
I dont have an allen mag but have got very good performance from the 7mm dakota necked down to 6.5. no fire forming and will offer 175 to 200 pfs faster than the 264 win mag with better accuracy and not as finiky as the belted case of the 264.
100 grain lapua 78 4831-3956fps .5 group
120 grain hornady 78 h1000 3673fps .3 group
140 grain hornady 75 h1000 3365fps .3 group
these are from a 30 inch broughton barrel. Im sure the allen mag will even offer more than this from his case.