“bore diameter”

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.

7mm Backcountry or 7mm PRC? Which 21st century wonder-seven will come out on top in this Head-to-Head examination? Read on to find out.

Phil Massaro tackles the 6mm ARC, a military cartridge that's equally at home in the hunting field.

Why do some cartridges stick around, while others fade into obscurity? Phil Massaro delves into the topic, drawing on a lifetime of experience with ammunition stalwarts and fade-outs alike.

In this month's Head to Head, Phil Massaro breaks down the differences between these two .30-caliber favorites.

Named for the antagonist in the medieval classic Beowulf, the 6.5 Grendel certainly delivers a performance level which belies the cartridge’s image.

This revolver and ammunition combination are all about high speed rather than raw power.

If you’re in the market for a new 7mm hunting cartridge, these five are worth a close look. 

The 27 Nosler and 6.8 Western both use the .277-inch diameter bullets made so popular by the venerable .270 Winchester, yet at faster twist rates with heavier projectiles than the old man can handle. We pit these two against one another and see which of the young upstarts comes out on top.