After any advice before I head off to the gunsmith.
Tikka .243 with a sako 100gr round. 3 rounds within an inch on the target before heading off up the hill. Complete miss with first and second shot at a red at around 150m. Stalker missed with third shot.
Back down hill to target, all 3 shots within an inch!
Took rifle home, checked screws, bolts etc and all were tight. Took rifle on range and put 15 rounds through (letting barrel cool etc) and all were ok.
Next time out, shot was around 300mm out and ended up in the gut, second shot missed and I think I got lucky with a very quick third to take it down!
All I can think of is my scope is on the blink as everything else seems ok unless I'm missing something obvious (or not so obvious?).
Any comments welcome, but what was a perfectly good rifle seems to becoming a nightmare.