Sierra BlitzKing 20 Cal 39 Grain Boat Tail Bullets (.204 Diameter)

The Sierra BlitzKing 20 Cal 39 Grain Boat Tail Bullets are purpose-built for handloaders who demand both explosive terminal performance and match-grade accuracy from lightweight rifle and handgun cartridges. These .204 diameter projectiles combine Sierra's proven design principles with a unique acetyl resin polymer tip that initiates rapid, uniform expansion on varmints and small game while maintaining the ballistic efficiency of a boat tail profile.

Built to handle the high velocities that 20-caliber cartridges deliver—particularly the .204 Ruger, .20 Tactical, and .20 Vartarg—these bullets are engineered with the right length and weight to stabilize reliably in standard 1-12" twist barrels. Whether you're working up loads for a modern varmint rifle or loading for the smaller centerfire 20-caliber handgun cartridges, the 39-grain BlitzKing delivers the flat trajectory and consistent expansion you need for clean, ethical kills on small to mid-size game.

The boat tail design reduces drag and extends effective range, while the proprietary tip geometry improves ballistic coefficient compared to traditional spitzer profiles. Reloaders appreciate the consistency Sierra bullets are known for, and the BlitzKing's predictable expansion makes it a smart choice if you're developing loads for hunting, varmint control, or precision field shooting where performance matters.

Key Features

• 39-grain weight optimized for 20-caliber rifle and handgun cartridges
• Boat tail design for improved ballistic coefficient and long-range accuracy
• Proprietary acetyl resin tip engineered for rapid, uniform expansion
• Designed to stabilize in standard 1-12" twist .204 barrels
• Suitable for high-velocity cartridges including .204 Ruger, .20 Tactical, and .20 Vartarg
• Effective on varmints and small game from rifle and handgun platforms

Specifications

Frequently Asked Questions

Will these bullets work in my .204 Ruger rifle?

Yes. The 39-grain BlitzKing #1039 is specifically designed for the .204 Ruger and similar high-velocity 20-caliber cartridges. They're engineered to stabilize in the standard 1-12" twist barrels used in .204 Ruger rifles and handle the muzzle velocities those cartridges deliver.

Can I load these for a 20-caliber handgun cartridge?

Yes. Sierra designed the BlitzKing for both rifle and handgun use in 20-caliber centerfire cartridges. They're particularly well-suited to smaller-capacity cartridges like the .20 Vartarg and deliver outstanding accuracy and expansion even from shorter handgun barrels.

What's included in a purchase?

These are component bullets sold for reloading. You receive the quantity of .204 diameter, 39-grain boat tail bullets ordered—the projectiles themselves. You'll need to provide your own brass, primers, and powder to complete the reloading process.

How do these compare to other Sierra 20-caliber bullets?

The BlitzKing shares Sierra's accuracy standards with the MatchKing design but adds the proprietary acetyl resin tip for controlled expansion on small game and varmints. The boat tail profile improves ballistic efficiency over traditional spitzer designs for flatter trajectories at distance.