Remington Model 700 Varmint Rifle
I have found that a 1:12" twist in .30 caliber works best for me accuracy wise. My Remington Model 700 Varmint rifle has a 1:12" twist although most .308s and 30-06s come with a 10" twist. I also prefer a heavy .30 caliber lead bullet of 170 to 200 grains. I do not gas check my bullets, but lube with Lee liquid ALOX. After the lube dries I add a dab of lithium grease to the base of the bullet as I load it into the case. I keep my velocities under 1800FPS and my shooting range under 150 yards.