Took my Rock Creek 1-8 6br prefit with about 1200 rounds and rechambered it with my fingers to 6bra. Headspace to 4 short. Bone stock Remington 700 single shot from Buds Guns trued by hand by my smith. Jewel trigger. Stock made from CMP 40X stock by my buddy Terry Tabor. Tubb said shot several TMS bullets to clean up the throat. So I did. Fire forming AR Comp 29.2 to 29.9 with 108 Berger. Jumped 25 thou. Shot with Tubb bipod and squeeze bag. Tubb brake.