Going to start this for an info resource. First off, I am not out for ultimate speed. But accuracy and consistency. I will be testing several powders however. Rifle info: (Brand new, never fired-just picked it up on Tuesday) 6.5 Sherman Short Mag built by Axisworks Lone Peak Fuzion TI SA 26" 1:7.5" Proof Sendero Light w. 4 port MBM brake Manners EH1 w. Gen 1 mini chassis and DBM (this is a temp stock until my PRS2 BDL is built and arrives from Manners) Accurate .300WSM mags at 2.970" inside Timney Calvin Elite @ 8oz Seekins 34mm "Low" rings S&B PMII 5-20×50US w. H2CMR Vortex Lo Pro level I am starting with two powders that have performed very well in my other 6.5SS, and several other guy's 6.5SSs. H1000 & RL23 I will probay be trying RL26, possibly Retumbo, and NV565. ADG brass (already fire formed in my other 6.5SS) this chamber is .002" shorter than my old one. Shoulder was at (w. .420 comp): Fired in old chamber 1.564" Bumped to 1.562" (this length, the new bolt closed, but I could feel it dragging) Bumped to 1.560", closes like butter Fed GM215M Berger 6.5mm 156 Elite Hunter To the lands: COAL: 2.980" CBTO: 2.288" I loaded up some sighters and test rounds with H1000 and RL23 to start. Starting at .010" jump to lands. COAL 2.970", CBTO 2.278" Here is a 156 EH @ .010" jump vs. 140 Hybrid @ .020" jump. New 156 EH @ 2.279" CBTO .010" jump Bullet seems seated almost perfectly in the neck to me Should be shooting on Sunday. Cross your fingers.