Found this info, thought I would share...
What is Lubalox?
Lubalox® is the trade name Winchester uses to describe a black oxide process. It is a very thin oxide bullet coating, often compared to the bluing on a steel firearm.
What are the benefits of Lubalox?
The primary benefit of Lubalox is reduced barrel fouling. The process creates a surface on the bullet jacket, which increases the amount of shots possible between cleanings. Unlike moly-coated bullets, Lubalox coated bullets leave the barrel residue-free and do not require barrel “seasoning”. Additionally, unlike uncoated bullets that tarnish over time, Lubalox protects the surface of the bullet jacket, keeping it looking like new.
When was Lubalox introduced?
The Lubalox coating was introduced in the early 90’s on the Ballistic Silvertip? line. Considered one of Winchester’s most successful product introductions, this is the company’s second largest rifle ammo line.
What product lines is Lubalox used on?
The Lubalox coating is used on the AccuBond® CT®, Ballistic Silvertip®, E-Tip and XP3® product lines.
Will Lubalox harm the gun barrel?
Lubalox does not harm the barrel. In fact, testing shows that the coating often reduces barrel fouling.
What is the difference between Lubalox and Moly Coating?
Lubalox Coating
* Black Oxide
* First used in early 1990
* Does not increase diameter of bullet
* Used on AccuBond CT, Ballistic Silvertip, E-tip and XP3 product lines
* Does not harm barrel
* Reduces barrel fouling
* Does not require barrel “seasoning”
Moly Coating
* Molybdenum Disulfide
* First used in late 1990
* Increases diameter of bullet
* Was used on part or all of Power Point Plus, Partition Gold Rifle and one Hornet SKU
* Did not harm barrel
* May have caused barrel fouling
* For optimum performance barrel “seasoning” was required
* Could cause accuracy problems in some guns