I generally don't have many issues working up a load to decent accuracy levels. However, I am frustrated with this new to me rifle and could use some advice. Savage 116 6.5-284 with 24" varmint contour barrel. Stock rifle. Owner said 100 or less rounds. Barrel was heavily copper fouled. I stripped it out. Started over. EGW steel 20 MOA base. Sightron S3 scope. Good rings, unsure of brand. Stock removed and torqued to 45in. New lapau brass. 140 bergers. Retumbo. 1.832 head space on new brass. 1x fired is 1.838 which is where my die sets it. 1.841-1.844 seemed to be the measurements before resizing. With new unfired brass the rifle likes .100 off the lands and 58 gr retumbo. 3000 fps, confirmed at 750 yards. Gives me .3 MOA at 200 yard zero. With 1x fired brass and the same configuration 58 produces some sticky bolt lift. Not bad, just a bit, and faint ejector marks. I don't like it and figured 58 grs is just too much pressure. 57.5 with 1x fired brass also produces a little lift and occasionally ejector marks. Therefore I concluded 57 is the safe level to work with. That began my long shooting sessions with frustrating results. It was hard to get consistent results. All of my brass is now fire formed to this new chamber and all should be consistent for the next session. I burned up 150 rounds in 2 days working on an accurate load. The best I could do was .5 MOA at 200 zero. The last 10 cases of unfired brass gave me .25MOA at 200 but I feel this will change on fired cases. It was .075 at 56 grs. Seems to be around 2900-2920 fps. Where should I begin with my next session to finish this up.