data

This term refers to specific information provided by Hornady Manufacturing Company regarding the Sub-X bullet, a specialized projectile designed for subsonic applications. In this context, “190 gr” denotes the bullet weight of 190 grains, a unit of mass commonly used for ammunition. This information typically includes recommended powder types, powder charges (the amount of propellant used), cartridge overall length (COAL), and expected ballistic performance data such as muzzle velocity and energy. An example would be a table listing different powders suitable for the 190-grain Sub-X bullet, with corresponding charge weights and resulting velocities.

Access to this precise information is crucial for safe and effective handloading of ammunition. Using manufacturer-provided data ensures consistent projectile performance and helps prevent dangerous overpressure situations. Accurate data is essential for achieving desired ballistic results, whether for hunting, target shooting, or other applications. Historically, handloaders relied on published manuals and personal experimentation. The readily available online resources from manufacturers like Hornady represent a significant advancement in safety and precision for the handloading community.

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Ammunition designed for the .30-06 Springfield cartridge operating below the speed of sound involves specialized components and careful assembly. Typically, this entails using heavier bullets and significantly reduced powder charges compared to standard loads. For example, a common approach involves pairing projectiles weighing over 200 grains with specialized powders known for their clean burning properties at lower pressures.

Reduced-velocity cartridges offer advantages in specific shooting scenarios. The lower muzzle velocity minimizes the characteristic crack of a supersonic bullet, providing significantly quieter report. This is particularly valuable for hunting or target practice where noise reduction is desirable, or when using suppressors. Furthermore, the heavier bullets often exhibit improved ballistic coefficients at subsonic speeds, potentially enhancing accuracy and terminal performance within their effective range. The development and refinement of such specialized ammunition reflect an ongoing evolution in firearms technology, catering to increasingly specialized needs and applications.

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This refers to specific information regarding handloading ammunition for the .270 Winchester Short Magnum (WSM) cartridge using Hodgdon H1000 powder. This data typically includes powder charges, bullet weights, cartridge overall lengths, and expected velocities. A proper load ensures safe pressures within the firearm while optimizing accuracy and ballistic performance. An example would be a table indicating that a 150-grain bullet paired with a specific weight of H1000 powder should yield a certain muzzle velocity and pressure.

Accurate and reliable information is crucial for safe and effective handloading practices. Using proper data prevents dangerous overpressure situations that can damage firearms and cause injury. Optimized handloads can enhance accuracy and ballistic performance compared to factory ammunition, allowing shooters to tailor their rounds to specific needs, such as long-range hunting or target shooting. Handloading has a long history, evolving alongside firearms technology, with meticulous data collection and sharing playing a vital role in its safety and efficacy.

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