.505 | 525gr | A-Square DeadTough

About this bullet

.505 | 525gr | A-Square DeadTough is a bullet made by A-Square. At 525 gr (34.0 g) and a diameter of 0.505'' (12.83 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. Its G1 ballistic coefficient of 0.283 drives velocity retention and wind drift downrange — higher values mean a flatter trajectory at distance.

Load data for .505 | 525gr | A-Square DeadTough bullet is available in the following calibers:

• .505 Mag. Gibbs

Safety notes

All load data is reference data only. Always start at the minimum charge and work up in small steps while watching for pressure signs. Never exceed the maximum charge published by the powder or bullet manufacturer.