.338 | 250gr | Barnes MRX BT

About this bullet

.338 | 250gr | Barnes MRX BT is a bullet made by Barnes. At 250 gr (16.2 g) and a diameter of 0.338'' (8.59 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. Its G1 ballistic coefficient of 0.521 drives velocity retention and wind drift downrange — higher values mean a flatter trajectory at distance. A twist rate of 1:14.0 is recommended for stable flight; slower twists can under-stabilise this bullet. We currently list 939 load recipes across 22 calibers for this bullet.

Most popular calibers for this bullet

Load data for .338 | 250gr | Barnes MRX BT bullet is available in the following calibers:

• .33 Nosler
• .33 Sherman Magnum
• .33 Win.
• .338 Blaser Mag.
• .338 Federal
• .338 Lapua Mag.
• .338 Lapua Mag. Ackley Improved
• .338 Norma Mag.
• .338 RCM
• .338 Rem. Ultra Mag.
• .338 Sherman
• .338 Weatherby RPM
• .338 Win Mag.
• .338-06 A-Square
• .338-378 Weath. Mag.
• .340 Weath. Mag.
• 33 XC
• 8.5 mm Messner Mag.
• 8.5 x 55 Blaser
• 8.5 x 63
• 8.5 x 63 R
• 8.5 x 68 Fanzoj

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.