The SMALLEST Caliber

Published on March 26, 2025
Duration: 1:13

This video explores the smallest firearm calibers, distinguishing between pellet guns and actual cartridges. It highlights the 4.6x30mm as a very small, high-velocity option and identifies the .17 HMR as the smallest mainstream rimfire caliber, popular for varmint hunting due to its speed, despite wind sensitivity.

Quick Summary

The .17 HMR is the smallest mainstream rimfire caliber, featuring a .17 caliber diameter and a muzzle velocity of approximately 2500 fps. While popular for varmint hunting, its small size makes it very susceptible to wind drift.

Chapters

  1. 00:00Introduction: Smallest Rounds
  2. 00:12The 4.6x30mm Caliber
  3. 00:37The .17 HMR Caliber

Frequently Asked Questions

What is considered the smallest mainstream rimfire caliber?

The .17 HMR is identified as the smallest mainstream rimfire caliber. It features a .17 caliber diameter and is known for its high muzzle velocity, making it popular for varmint hunting and target shooting.

What are the specifications of the 4.6x30mm cartridge?

The 4.6x30mm cartridge has a very small diameter, approximately .18 inches. It is noted for achieving high velocities, making it a compact yet potent option in the realm of small firearm rounds.

What are the advantages and disadvantages of the .17 HMR?

The .17 HMR offers high muzzle velocity (around 2500 fps), making it effective for prairie dogs and target practice. However, its small diameter makes it highly susceptible to wind drift, which can significantly impact accuracy at range.

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