Yup a nifty blue, but no idea where my buddy got them. In .308 and .44 the Bullet Barn was my go-to, good thing I'm well stocked on those. I've looked at a powder coating machine but to do a rifle, this could push me over the edge.
Powder-coating bullets only requires a small plastic container to mix your powder with acetone, dump your bullets into to shake around until they're uniformly covered, and a cheap toaster oven from the second-hand store that will reach the proper temperatures.
Lots of info online and on this site.
Casting the bullets is another learning curve and you can get into it reasonably cheaply. A set of molds, handles, a camp stove, and a cheap second-hand store aluminum pot. If you want to get fancy, a temperature gauge and hardness tester, dipping/pouring ladle.
You can mix your own from Linotype and Pure Lead or a wheel weight mix or purchase premixed.
With cast bullets, proper diameter sizing is mandatory for good accuracy.
When you purchase pre-cast bullets, it's often difficult to impossible to get the diameters necessary for your rifle to shoot well.
Many people get turned off cast bullets because they haven't done their homework.
Shooting solid projectiles accurately is a huge learning curve and every venue, as well as the segments within the venue, have their curves.
For instance, changing over to magnum primers from standard primers can generate just enough extra pressure to turn a poor load combination into an excellent combination.
This is just one thing that can make a difference in all venues.
That's what's so interesting about this sport, there's always something new to learn.
If you're a "one gun" person, the learning curve can be directed with laser accuracy.