Batch Testing Ammo for my Rifle...

Down at Bisley Camp today and after a 133 mile road trip l had a coffee and waited my turn.
The Guys from Lappua know what they are doing and soon stripped my stock from the rifle and bolted on a Aluminum block so the rifle could be bolted into the clamp without any damage.
He then went on to test about 10 batches of Centre X ammo and the third batch was undoubtedly the best with a group of 13.44mm the best it's every done.
I couldn't buy 5000 as there was only 3750 left of that batch but it will last about 18 months.
I manage to get another 1250 of the next best batch which grouped at 15.1mm, which is not bad.
So l am now set up for the prone shooting season.