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The Lapua Lock Base bullet/h2>
Lapua’s Lock Base bullet is a Lapua innovation which combines a full metal jacket and boat tail with a patented base design. This rifle bullet is suitable for mid-range and long range shooting and it has proven its worth in sport shooting arenas as well as military and law enforcement applications over time.

19.44 g / 300 gr Lock Base FMJBT B557

Product no.

4 PL/HL 8011

Caliber

8.61 mm (.338)

Bullet

FMJ Boat Tail, Lock Base

Bullet Code

B557

Bullet diameter

8.60 mm (.338'')

Bullet type

FMJBT (Full Metal Jacket Boat Tail)

Bullet weight

19.4 g (300 gr)

Purpose

Tactical

BC G1

0.765

BC G7

0.383