I want to get into long range shooting, but honestly, don't know enough about what to buy. Please, tell us about what you have here. Did you own other long range guns before this one? How did you end up with this one?
I started with a Savage 10FCP-K in .308 to get the feel for it, which I later put in a CADEX chassis, then bought a Savage 110BA in .338LM, which was my first real "long range" rifle, but it wasn't a great rifle for the price. Decided to get serious and purchased this CADEX CDX-33 in .338LM, which is the same rifle used by several Special Forces groups (like the McMillan TAC-50 is used by the Canadian SF). It has a custom built 700-based action, Bartlein stainless barrel, CADEX's own adjustable trigger and brake as well as their custom chassis. In my discussions with them, I asked for an optic recommendation, which is how it ended up with the Vortex Razor Gen II that's on it. I was originally going to buy an S•B PMII.
I sold the Savage 10 in .308 (and regret that decision, it was a tack driver and you can never have too many rifles! and later bought a Remington 700 5R Milspec which is topped with a basic Leupold VX3-HD, which is a good enough scope for .308. This is my "deer rifle", but it gets a fair amount of paper (and hard drive) time at 100 yards, as that's the length of my buddy's range where we do the majority of our shooting. Longer range requires taking a tour out to the tower lines or down toward Kingston if you want a "real" range. He has a Tikka .300WM, which is another excellent long-range cartridge.
I was very generously gifted a reloading press and some other reloading equipment by
@CarbonSteel who is far more into this than I am, with several custom rifles. .338LM is not an inexpensive cartridge to shoot, so reloading not only gets you better quality rounds, but with this particular calibre, also saves you considerable money. It's a fantastic cartridge though, it shoots insanely flat, and in a heavy rifle like this one with a large brake, the recoil isn't bad at all.