Cartridge Reloading Regression Analysis

Cartridge Reloading Regression Analysis
The following information was created and is provided by Close Focus Research (CFR) for those who are interested in performing Cartridge Reloading.

Example Calculations
Most cartridge reloading manuals only provide a few combinations of load data for each powder and bullet type. The purpose of the regression analysis is to help you figure out the how much powder to use to obtain specific projectile velocities when reloading by filling in the gaps between the given minimum and maximum loads. Use the provided spreadsheet to calculate the values you need for your particular caliber and load combinations.

Note: In the Table, Chart, and Spreadsheet, the red colored values are user entered values and the blue colored values are the calculated results.

Shown in the table below are six (6) reloading combination values (Powder Weight [PW] / Projectile Velocity) taken from the Data Reference source for a .357 magnum 125 grain JHP bullet. To the right of these values is a table of calculated linear regressed values (Powder Weight, Projectile Velocity, Projectile Energy, Projectile Momentum and Power Factor) based on these Reference values. The R Value, in this case 0.99984, represents how accurate a straight line fit of calculated values would be to the original Reference values. As the R Value number approached a value of 1.0000, it means the calculated values become more accurate compared to the Reference values. The Linear Regression Equation in this case is Velocity = PW * 56.99 + 464.18, which represents the straight line fit shown in the chart below (blue plot). The Data Reference source values are shown in the red plot. In Addition, one can also calculate the Velocity and Energy based solely on Power Factor (Power Factor = Projectile Weight * Velocity).

Microsoft Excel Spreadsheet Download
Download the Microsoft Excel Spreadsheet for Cartridge Reloading Regression Analysis:
Cartridge_Reloading_Regression_Analysis.xls

Cartridge Reloading Regression Analysis Table
Cartridge Reloading Regression Analysis Table

Cartridge Reloading Regression Analysis Chart
Cartridge Reloading Regression Analysis Chart
| ballistic techniques | ballistic technology | ballistic test | ballistic test lab | ballistic test laboratory | ballistic test results | ballistic testing lab | ballistic testing laboratory | ballistic tests | ballistics techniques | ballistics technology | ballistics test | ballistics test lab | ballistics test laboratory | ballistics test results | ballistics testing | ballistics testing lab | ballistics testing laboratory | ballistics tests |
Copyright ©2003-2024 by Close Focus Research