.308 | 170gr | Lapua Lock Base

About this bullet

.308 | 170gr | Lapua Lock Base is a bullet made by Lapua. At 170 gr (11.0 g) and a diameter of 0.308'' (7.82 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. Its G1 ballistic coefficient of 0.498 drives velocity retention and wind drift downrange — higher values mean a flatter trajectory at distance. A twist rate of 1:13.5 is recommended for stable flight; slower twists can under-stabilise this bullet. We currently list 1000 load recipes across 36 calibers for this bullet.

Most popular calibers for this bullet

Load data for .308 | 170gr | Lapua Lock Base bullet is available in the following calibers:

• .30 Fl. N.E. Purdey
• .30 Nosler
• .30 R Blaser
• .30 Sherman Magnum
• .30 Super Fl. H&H
• .30 TC
• .30-06 Ackley Improved
• .30-06 R Stief
• .30-06 Spring.
• .30-378 Weath. Mag.
• .30-40 Krag
• .300 Blaser Mag.
• .300 CR
• .300 H&H Mag.
• .300 HAM'R
• .300 Lapua Mag.
• .300 Norma Mag.
• .300 PRC
• .300 RCM
• .300 Rem. SA Ultra Mag.
• .300 Rem. Ultra Mag.
• .300 Savage
• .300 Sherman
• .300 Weath. Mag.
• .300 Win. Mag.
• .300 WSM
• .308 Marlin Express
• .308 Norma Mag.
• .308 Win.
• .308 Win. Ackley Improved
• 7.5 x 54 mm MAS
• 7.5 x 55 Swiss
• 7.62 UKM
• 7.62 x 39 (.308) Russian
• 7.62 x 53 R Fin.
• 7.82 Warbird

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.