Q, LLC. BRASS-86-100 Q-Stamped Hornady Brass 8.6 BLK 100ctQ, LLC 8.6 BLK with a quantity of 100 pieces BRASS-86-100. This suggests it is likely ammunition or reloading components for firearms. The Q, LLC BRASS-86-100 8.6 BLK likely refers to the caliber or type of ammunition. The "100ct" indicates that the product comes in a quantity of 100 pieces. Overall, it seems to be a specific type and quantity of Hornady brass for reloading or ammunition purposes. Premium cases are the foundation to all of Hornady’s ammunition. Extra time and care is taken in the creation of Hornady’s cases, producing smaller lots that meet strict quality standards. These cases offer reloaders excellent uniformity in wall thickness, weight and internal capacity. All cases are measured for consistently tight wall concentricity, and even undergo pressure calibration testing to ensure uniform case expansion during firing. Concentricity helps to ensure proper bullet seating in both the case and the chamber of your firearm. Higher concentricity also aids in a uniform release of the bullet on firing, for optimal velocity and accuracy. These cases also allow proper seating of the bullet, not only in the case, but in the chamber as well. In addition, the use of high quality brass contributes to consistent charges and pressures. Features of Hornady’s Unprimed Brass: Strict quality standardsUniform wall thicknessConsistently tight wall concentricityHigh quality brass Q, LLC. Q-Stamped Hornady 8.6 BLK 100ct BRASS-86-100