About this bullet
.251 | 50gr | Sierra FMJ RN SportsMaster is a bullet made by Sierra. At 50 gr (3.2 g) and a diameter of 0.251'' (6.38 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. Its G1 ballistic coefficient of 0.109 drives velocity retention and wind drift downrange — higher values mean a flatter trajectory at distance. We currently list 27 load recipes across 1 calibers for this bullet.
Most popular calibers for this bullet
| Caliber | Load recipes |
|---|---|
| .25 ACP | 27 |
Load data for .251 | 50gr | Sierra FMJ RN SportsMaster bullet is available in the following calibers:
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.