I am having trouble zeroing my 1967 BRNO 308. I have tried Sako FMJ rounds with some success, and Sako softpoint 180gr with random results. Pretty much the rifle zeroed with the fmj, fired randomly within a 6 inch circle with the SP and when I went back to the fmj the results were nearly as bad as the SP. This was over the course of about 2 hours.
I will try the mount screws for tightness and other screws on the rifle as it has recently been screwcut for an ATech moderator which would involve I suppose stripping the rifle down.
If anyone has experience of this rifle could they suggest ammunition that is suitable as at £35 a box(ish) I cant afford to go through every brand!