Yesterday I shot some factory loads for the first time in 7 years. I noticed my handload cases are never as clean as factory cases. I'm not a novice reloader and load for 12 cartridges 3 being used competetively in benchrest matches. I'm wondering why in all my years of reloading I've never gotten lucky and found the perfect combination of primer/powder/bullet to get a perfectly clean burn like a factory case.
I was shooting 270 Win. Federal Fusion 130 grains vs new brass Win. cased load using 57.0gr IMR 4831 under a 130gr Nosler ballistic tip. Inspecting both empty cases the Fed. factory round is almost spotless inside while my handload is dark grey(it was cleaner than most of my handloads). As usual the handload had a touch of carbon on the outside of the neck while the factory load looked perfect.
I'm not really concerned about my handloads being a little dirty. I'm more curious what ammo factories are doing to make such clean burning loads. What's the difference between there's and mine?
I was shooting 270 Win. Federal Fusion 130 grains vs new brass Win. cased load using 57.0gr IMR 4831 under a 130gr Nosler ballistic tip. Inspecting both empty cases the Fed. factory round is almost spotless inside while my handload is dark grey(it was cleaner than most of my handloads). As usual the handload had a touch of carbon on the outside of the neck while the factory load looked perfect.
I'm not really concerned about my handloads being a little dirty. I'm more curious what ammo factories are doing to make such clean burning loads. What's the difference between there's and mine?