I use the Lee 312-155-2R and the XCB bullet, usually with Hornady checks but I just ran off another batch of Free Chex III's. I need to do a head to head test. I use 4227 and 2400. My 200 yard load ran about 1,450, but I jacked it up to 1,700+ to flatten the trajectory a little when I went to the longer distances.
I use three rifles at the longer range. A 4 groove Springield Sporter still in .30-06, the I have two .308's, both heavy barrel Model 700's one is set up as a single shot in a 40-X stock, bedded, and with a really nice trigger, the other on a redone Police stock and a Timney trigger. If I remember correctly, one was an SP, and the other a Varmint. What shocks me is the Springfield, as the throat is just roached, yet it has always shot cast well. Everything I've tried in it has been 2.5 MOA and less. 311284, RCBS 180 SP, The Lee, the XCB, 311466, and 311299. The Lee and the XCB just lead the pack in all three rifles and don't have to be jammed into the rifling to work, so I never de-bullet a loaded round, dumping powder into the action.
I run identical scopes on those three rifles, and on a Kidd 10-22, and a Bergara B-14 .22. Leupold Mark AR Mod-1 6x18 with Mil-Dot reticles. When these scopes were closed out at basically 400 bucks a piece with tax and free shipping you just couldn't go wrong. I am beginning to understand Milling for range estimation and find it extremely useful for windage. Trouble is my shooting buddy still calls in minutes when spotting. (Lol)
I try to adapt to all of the little nuances I pick up on here. I have gotten fussier on my brass and I absolutely approve of the RCBS Gold Medal Match X dies so I can customize neck tension while still sizing the case body down.