10mm 165gr V-crown Longshot Load with chronograph

Published on January 18, 2026
Duration: 0:44

This video demonstrates the process of testing a handloaded 10mm cartridge featuring a 165gr Sig V-Crown JHP bullet and 9.0 grains of Hodgdon Longshot powder. An experienced handloader uses a Caldwell chronograph to measure velocities and calculate muzzle energy from two different barrel lengths (3.78" Glock 29 and 5" 1911), providing objective ballistic data.

Quick Summary

An experienced handloader tested a 10mm 165gr V-Crown JHP load with 9.0gr Hodgdon Longshot. Chronograph data showed 1225 fps from a 3.78" Glock 29 barrel and 1325 fps from a 5" 1911 barrel, demonstrating the impact of barrel length on ballistic performance.

Chapters

  1. 00:00Reloading Components Overview
  2. 00:20Glock 29 Chronograph Test
  3. 00:311911 Chronograph Test

Frequently Asked Questions

What are the key components for the tested 10mm handload?

The tested 10mm handload consists of 10mm brass, 9.0 grains of Hodgdon Longshot powder, and Sig Sauer 165gr V-Crown Jacketed Hollow Point (JHP) bullets.

What velocities were achieved with the 10mm handload?

The 10mm handload achieved 1225 fps from a 3.78-inch Glock 29 barrel and 1325 fps from a 5-inch 1911 barrel, according to chronograph readings.

How does barrel length affect the performance of this 10mm handload?

The longer 5-inch barrel of the 1911 resulted in higher velocity and muzzle energy (1325 fps, 643 ft-lbs) compared to the shorter 3.78-inch barrel of the Glock 29 (1225 fps, 550 ft-lbs).

What tools are essential for testing handloaded ammunition?

Essential tools for testing handloaded ammunition include a precision digital scale for powder charges and a chronograph, such as the Caldwell Ballistic Precision Chronograph, to measure velocity and energy.

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