mk 316/178 bthp

[700sendero]

Hello all..ive been working on a mk 316 clone using lc lr 07 brass...41.7 imr 4064..hornady 178 bthp... oal 2.81 seems to be a compressed load..shoots better than I can..problem is im getting ejector marks on case head...sorry rifle is 700 ltr 10 twist..but dosent seem to be every time..any suggestions? Thanks

 

[George63]

Re: mk 316/178 bthp

that should not be close to a high pressure load, if they do well keep shooting them - if you get the brass annealed after 7-8 it will likely last for 15 cycles