.416 | 300gr | TWENTY-NINE HP

About this bullet

.416 | 300gr | TWENTY-NINE HP is a bullet made by TWENTY-NINE. At 300 gr (19.4 g) and a diameter of 0.416'' (10.57 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. Its G1 ballistic coefficient of 0.299 drives velocity retention and wind drift downrange — higher values mean a flatter trajectory at distance. A twist rate of 1:22.0 is recommended for stable flight; slower twists can under-stabilise this bullet. We currently list 103 load recipes across 8 calibers for this bullet.

Most popular calibers for this bullet

Load data for .416 | 300gr | TWENTY-NINE HP bullet is available in the following calibers:

• .405 Win.
• .416 Rem. Mag.
• .416 Rigby
• .416 Ruger
• .416 Taylor Mag.
• .416 Weath. Mag.
• 10.3 Capra
• 10.3 x 60 R Swiss

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.