7mm Rem Mag: Why it just might fall (Cartridge Wars)

Published on January 29, 2022
Duration: 12:52

The 7mm Rem Mag offers superior trajectory and wind drift compared to the .30-06, with comparable energy and only slightly more recoil. Despite its historical popularity, its long-action requirement and older twist rates (1:9-1:10) hinder its ability to stabilize modern heavy bullets, making newer cartridges like the 6.8 Western more competitive. Other 7mm variants like the Weatherby, WSM, and STW face their own market or technical limitations.

Quick Summary

The 7mm Rem Mag excels over the .30-06 in trajectory and wind drift due to its higher velocity and better ballistic coefficients, with only slightly more recoil. However, older twist rates limit its ability to stabilize modern heavy bullets, and its long-action design is less suited for suppressed shooting trends.

Chapters

  1. 00:00Intro: Cartridge Wars & 7mm Rem Mag
  2. 00:55Ballistics: 7mm Mag vs .30-06
  3. 01:19Energy & Recoil Comparison
  4. 03:037mm Rem Mag Popularity Rank
  5. 05:00Suppressors & Barrel Length Impact
  6. 09:03Twist Rate Limitations
  7. 09:31Other 7mm Contenders Breakdown

Frequently Asked Questions

How does the 7mm Rem Mag compare ballistically to the .30-06 Springfield?

The 7mm Rem Mag offers a flatter trajectory and less wind drift compared to a .30-06, especially when using comparable bullet weights. While muzzle energy is similar, the 7mm's better ballistic coefficient contributes to superior downrange performance in wind.

What are the main technical limitations of the 7mm Rem Mag today?

Older 7mm Rem Mag rifles often have slower twist rates (1:9-1:10) which struggle to stabilize modern, heavy, high-ballistic coefficient bullets. Additionally, its long-action requirement is less ideal for the trend towards shorter barrels favored by suppressor users.

Is the 7mm Rem Mag still a relevant hunting caliber?

Yes, the 7mm Rem Mag remains a highly capable hunting caliber, particularly for medium to large game at extended ranges, due to its excellent ballistics. However, newer cartridges may offer advantages in specific applications like suppressed shooting or with ultra-heavy bullets.

Why are cartridges like the 7mm WSM or 7mm Weatherby less popular than the 7mm Rem Mag?

The 7mm WSM is considered largely obsolete in the market. The 7mm Weatherby, while fast, often has expensive proprietary ammunition. Both, along with the 7mm STW, face challenges compared to the established market presence and versatility of the 7mm Rem Mag.

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