.258 | 85gr | Rim Rock RNFP Cowboy

About this bullet

.258 | 85gr | Rim Rock RNFP Cowboy is a bullet made by Rim Rock. At 85 gr (5.5 g) and a diameter of 0.258'' (6.55 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. We currently list 50 load recipes across 2 calibers for this bullet.

Most popular calibers for this bullet

Load data for .258 | 85gr | Rim Rock RNFP Cowboy bullet is available in the following calibers:

• 6.5 x 51 R Jap. Arisaka
• 6.5 x 52 R

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.