Tikka .243 AI

[eric1115]

120ish rounds through the gun now, barrel has sped up to 3150 for the 106 with intermittent slight pressure signs at 50.5. Groups have opened up a bit too, so I've got 15 each at 50.0 and 49.5 to see if I can bring it back down a bit and be a bit happier.

 

[eric1115]

Interestingly, dropping a grain didn't change velocity very much, 3130 5 round average. 10 rounds at 49.5 printed this group, and the one high round showed ejector mark on the brass. Wind has been whipping and gusty, to the point of disrupting steady sight picture at times.