.458 | 550gr | Impala RNFP KO

About this bullet

.458 | 550gr | Impala RNFP KO is a bullet made by Impala Bullets. At 550 gr (35.6 g) and a diameter of 0.458'' (11.63 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. A twist rate of 1:21.0 is recommended for stable flight; slower twists can under-stabilise this bullet.

Load data for .458 | 550gr | Impala RNFP KO bullet is available in the following calibers:

• .450 Rigby
• .458 Lott
• .458 Win.Mag.
• .460 Steyr
• .460 Weath. Mag.

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.