Well I am truly out of ideas!!
Today I took my rifle to Jager SA. He did a great job on re-coating my aged Swarovski...Many thanks.
I should say that I have a SIG/SAUER SHR970 .308 heavy fluted barrel with an integrated muzzle brake. I reload my own ammunition as I have done for the last 15 years. I bought the rifle a little over a year ago and have been having problems getting it just right ever since. Last year whilst on holiday I dropped my rifle into Border barrels who looked it over and gave it a clean bill of health.
So to the present. Whilst I was at Jager SA having the scope done I also had the muzzle brake removed and muzzle recrowned. I could think of nothing else it could be!!
It's a switch barrel rifle so I've had it apart and reassembled it 4 or 5 times now.
This is whats happening to my shots at 35m.Attachment 19016Attachment 19017
These are 2x freshly loaded groups of 3x shots. Both new brass, CCI primer, 46gr Varget, seated .001 of the lands when measured with one of those Stoney Point case thingys and then seated using a Forster Bench rest die. The odd thing is before it was recrowned I shot a group which was identical (i.e. Horizontal line) at 100m apart from the line was longer. If the line wasn't there I'd into 1/2 groups which is obviously what I want.