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Caliber Specifications:
Caliber: | .510 Whisper |
Bullet Diameter: | 0.510" | 12.95mm |
Primer Size: | Large Rifle (LR) |
Max. Case Length: | 1.997" | 50.72mm |
Max. Cartridge Length / OAL: | 3.400" | 86.36mm |
Max. Standardized Pressure: | 50038 psi | 3450 bar |
Case Capacity: | 87.2 Grains of Water | 5.66 cm3 |
CID: | CID_872 |
Last updated: | 2/20/2025 |
- The .510 Whisper is a subsonic rifle cartridge developed by SSK Industries for use in suppressed rifles. It is capable of firing a .51-caliber bullet weighing 750 gr (49 g) at roughly 1,050 ft/s (320 m/s). IMPORTANT: This is a subsonic caliber. You find load data here: https://www.xxlreloading.com/subsonic-load-data
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Most popular powders from our community members for caliber .510 Whisper:
Weight vs. Velocity - Suitable Bullets for this Caliber
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Barrel Length Variation vs. Velocity - by Bullet Weight
.510 Whisper load data available with the following bullets:
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Filter by Bullet Weight (Grains)
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