300 Win Mag vs 338 Win Mag vs 7mm Mag: Not Even Close?

On this episode of Ultimate Barrier Testing, we will compare the performance of the 7mm Rem Mag to the 300 Win Mag and the 338 Win Mag on 4 different targets. Each target is worth 25 points, for a grand total of 100 points. Whichever cartridge ends up with the highest score will be the winner. Testing was setup at 50 yards. Steel is A529 grade 55 mild steel. 1 inch = 25.4 mm. Thanks for watching!

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Test 1 and 4 Ammo Specs:

7mm RM – 26” Barrel
139 gr Interlock Reload
3,078 fps – 2,925 ft/lbs
S.D. - 3.3 fps

300 WM – 24” Barrel
165 gr Interlock Reload
3,192 fps – 3,734 ft/lbs
S.D. – 13.8 fps

338 WM – 26” Barrel
225 gr Interlock Reload
2,868 fps – 4,110 ft/lbs
S.D. – 24.4 fps

*3-shot average on Garmin Xero C1 Chronograph

*These tests are meant for entertainment and educational purposes only. Do not try any of these tests at home! Always verify your firearm is rated for and can safely fire any ammunition that you intend to use. Always follow standard safety procedures when handling Any firearm.

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