The GMDR.Load Tables and Charts

GMDR.Load includes a number of useful tables and charts for the handloader:

• Minimum Twist Chart:
With generic estimates of minimum barrel twist required to stabilize bullets of different weight and calibers. The values shown in the chart are obtained based on the Greenhill approximation, and considering Standard ballistic atmospheric conditions and a bullet density of an average 10.9 grams/cc (average value for jacketed bullets)

• Powder Burn Rate List:
With a scrollable table of 138 smokeless powders listed according to decreasing relative burning rate

• Primers by Type and Manufacturer:
A table with primer names by brand

• ANSI Maximum Pressure list:
A scrollable table with the standard maximum operating pressures per cartridge as specified by ANSI (in CUPs and/or PSI), and by the European CIP (in Mega Pascals either by crusher or transducer measuring methods)

• European Cartridge Equivalence:
A table with the listing of cartridges with European counterparts, and their names

• Inch-Millimeter Equivalence:
A scrollable list of useful SAE to Metric units conversion for typical ammunition dimensions.