Logolead Photo 7Mm RM And 7STW

Head to Head: 7mm Remington Magnum vs. 7mm STW

We recently ran a battle between the two newest 7mms—7mm PRC vs. 7mm Backcountry. In the comments, we noticed quite a few folks having an entirely different debate about two older stalwarts—7mm Rem. Mag. vs. 7mm STW. Read on to find out which of these classic cartridges comes out on top.

Behind the Bullet: 7mm STW

Just about every case shape imaginable has been modified to hold both 7mm and .30-caliber bullets, but it was gunwriter Layne Simpson who saw a gap in the lineup: there was no 7mm cartridge based on a full-length .375 H&H case. In 1979, Simpson took the excellent 8mm Remington Magnum and necked it down to hold 7mm bullets, giving his wildcat the name “Shooting Times Westerner.”

An Ode to the 7mm STW

Seldom encountered today, the 7mm STW was a trendsetter in the late 1990s and early 2000s. Although newer, faster cartridges have debuted since, it’s still a solid choice when pursuing big-game in wide-open areas.



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