The weather gods were with us for the most today, wind coming in behind the firing point but with the occasional side at 4 O Clock. Apart from a couple of shower it was ideal conditions, if you want to truly see what you rifle does at 600m this is the place as the wind is always friendly even when it blows.
This did mean the Viking was prepared to get her rifle out of the bag to shoot for groups after I had taken another 50 rounds off the life of my black thing.
Her second group gave thee shots that could be covered with one 16mm patch with two 'flyers' Fourth group gave a staggering 30mm for 5 shots which seems to have cheered her up. Not bad at 600m/656 yards. Of course being the one in the Butts I had taken the essential, cigs/lighter and a radio but no mobile or camera. Doh!
At just under 1 1/4" group I reckon that to be sub .20MOA
The afternoon was nice enough to take the 6,5-284 S&L out. My calculations based on 2950 fps with a 139 Scenars on a 200m zero gave 12.5ish MOA elevation for the 600m and I was on the frame nicely albeit slightly high, then odd things happened. I took one MOA out (6.5" ish) and dropped a bit but had to drop to 10.5MOA to be where I wanted to be.
Given that I know the distance is 600m and the round chronos at just over 2900fps and the 'scope is a new Kahles that *should* be right however as I took each shot and dropped a bit more on elevation the POI did not drop as I expected until about the 6th shot when at the 10.5MOA it had settled down. Letting the rifle cool off completely and then shooting again still gave a good POI at 10.5MOA so I am for the most rather confused.
Tomorrow I will confirm drops again at 600m and then take 2MOA off to see how that alters my POI, and repeat with another 2MOA.
What I will say is the barrel had been thoroughly scrubbed before hand and I do wonder if it needed a few shots to foul it. Tonight after 25 shots I cleaned it but only with oil and patches and without solvents as per Mr Schultz & Larsen's comments on Monday. It seems so wrong in my mind to not give it a good clean but as he built the thing I am prepared to give him the benefit of doubt.
Accuracy wise it was OK I reckon for what is basically a hunting rifle with a 12X 'scope The well prepared Viking took a snap. The rings are 25mm apart and the bottom shot was called but still counts. My view is around .50MOA but if someone has a copy of On-target and can confirm this I would be happy (It will not run on my Linux OS)
:lol: