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.510 Whisper
The .510 Whisper is intended to provide unmatched long range energy from a suppressed rifle, with the additional possibility of firing .50 BMG payloads at subsonic velocities. The .510 Whisper is based on the 338 Lapua cartridge, trimmed to 2" and necked to accept .500" bullets.
.510 Whisper Place of origin USA
Designer SSK Industries
Specifications
Parent case .338 Lapua Magnum
Case type Rimless, bottleneck
Bullet diameter .510 in (13.0 mm)
Neck diameter .549 in (13.9 mm)
Shoulder diameter .587 in (14.9 mm)
Base diameter .587 in (14.9 mm)
Rim diameter .588 in (14.9 mm)
Case length 1.875 in (47.6 mm)
Overall length 3.34 in (85 mm)
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Threaded Mode