Before metal goes fast, metal goes heavy. Power grooves are the slow, loud half of the genre — the riff-driven backbeat where every snare hit feels like a sledgehammer and every quarter on the hat or china marks the pulse the headbangers move to. Sabbath's Iron Man, Pantera's Walk, half of Metallica's mid-tempo work — all power grooves.
Mechanically there's nothing exotic going on. The hand pattern is quarter notes on the hat (or china, for the more aggressive sound). The snare lands on 2 and 4. The kick is sparse, hitting whichever beats the riff wants reinforced. The whole point is the feel — slow, planted, every stroke chosen.
Heavy Means Loud, Not Fast
If you're rushing these grooves, you've missed the point. Power grooves live in the ♩=85–110 range. The aggression comes from playing them with full-volume strokes — let the snare ring out, let the kick punch, lean into every hit. Save the speed for the thrash lessons.
Exercises
The simplest power groove. Hat on every quarter, snare on 2 and 4, kick on 1 and 3. The hands play four equal quarter notes — but the 2 and 4 are with the snare, so they should sound dramatically louder than 1 and 3. Lean into the backbeat.
Same groove, but the hand moves from the closed hi-hat to the china cymbal. The china is a trashier, more aggressive sound — Vinnie Paul's signature in Pantera, Lars's chorus accent in Metallica. The pattern is identical; only the timbre changes. Practice both: hat for verses, china for choruses.
Pulling the kick back to beat 1 only is a doom-metal staple — Sabbath, early Sleep, Saint Vitus. The bar is just the snare and hat carrying the weight; the kick is one anchor at the top, then silence underneath. Counterintuitively, this feels heavier than a busy kick because the bar has space to breathe.
Vinnie Paul's go-to feel: china on every quarter, snare on 2 and 4, kick on 1 plus a pair on the 3 and & of 3. That double-kick on the back half of beat 3 is the engine — it pushes into beat 4 and gives the riff somewhere to land. Slow, heavy, and deeply syncopated underneath the apparent simplicity.