My first "real man's rifle" was an Enfield 1917 sporter. As time went on I bought a no gunsmithing base, and added a bushnell 3200 3-9x on it. I had been using this as a deer and a primer for long range shooting since I was about 13. When I got a job flipping burgers, I saved up to get more involved in precision-long range marksmanship with a Remington 700 PSS in .300 win mag with an IOR 10x56T. Because of the ergonomic design, I felt that shooting the PSS with 190 grain match loads (TTI armory) was more comfortable than shooting any load with the Enfield. I could obviously achieve better accuracy, not only because of the better design of the rifle, but for the fact that this rifle was obviously more comfortable.
For various reasons, I traded my .300 mag to a buddy of mine for a PSS in .308, despite many hours of customizing, to include the trigger, a Nightforce 20MOA rail and the IOR scope itself perfectly zeroed with little BDCs that I made attached around the knobs. After going through the whole process of smoothing out and lightening the trigger, barrel break in, and scope calibration, this time with a Ken Farrell 15MOA rail, shooting the .308 in a heavy rifle is some of the easiest and most accurate shooting I can do. I miss the capabilities of the .300 win mag, but I definitely like the cheaper ammo and ubiquity of the .308. Now I just need to get this Super Sniper 10x42 to turn itself into an IOR.