Origin: Philadelphia, Pennsylvania, USA  
Genres: Melodic Death Metal
DISBANDED
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Page online: June 28, 2004
Last update/review: June 18, 2025

Single Bullet Theory

Single Bullet Theory features Matt DiFabio, onetime guitarist for Texas' Pissing Razors. DiFabio sings here as well as playing the guitar, deciding to add vocals after attempts to find a singer failed. Musically, Pantera would be the first reference point here, though it would be more accurate to say that SBT plays a similar brand of modern aggro-thrash metal, rather than labelling the band a Pantera clone. DiFabio's vocals are harsh, usually hardcore-influenced, par for the course in this style of metal. Route 666 doesn't really break a lot of new ground, but it packs a punch, and should find favor among modern metal fans. A second album, Behind Eyes Of Hatred, was released in 2004, but by early 2008 DiFabio decided to put the band to rest, citing family reasons. He put together a new version of the band in 2011, and that incarnation lasted until 2019, releasing two albums.

Last Lineup

Matt Difabio

guitars/vocals (ex-Pissing Razors)

Rich Gulczynski

guitars

Jeff Kalber

bass

Former Members/Guests

Mark Shveima Jr.

vocals

Doug Rush

guitars

Dan Loughry

guitars

John Ruszin III

guitars

Harry Lannon (guest)

guitars (Revocation)

Patrike Brose (guest)

guitars

Bill Mezick

bass (ex-Seven Witches)

John Sasso

drums

Jason Dunkerley

drums

Matt Thompson

drums (Aghora, Imagika, King Diamond, Shaolin Death Squad, ex-Surgeon)

Darrin Patrick

drums

Adam Sagan

drums (ex-Circle II Circle, ex-Witherfall) RIP: December 5, 2016, lymphoma, age 36

Justin Arman (guest)

drums


Discography


The Anatomy Of Being  EP
2001 Monumental
  1. Imperfect Fit
  2. One Bullet
  3. Space To Breathe
  4. Surface Tension
  5. Crawl
  • Mark Shveima Jr.
  • Matt Difabio
  • Doug Rush
  • Bill Mezick
  • John Sasso


Single Bullet Theory  EP
2002
  1. Abduction
  2. Senseless
  3. Into Thin Air
  4. Home
  • Mark Shveima Jr.
  • Matt Difabio
  • Doug Rush
  • Bill Mezick
  • John Sasso


Route 666  
2003 Crash Music
  1. Murder Machine
  2. Spit
  3. Abduction
  4. Senseless
  5. Automatic Impulse
  6. Imperfect Fit
  7. Revamp/Rebuild
  8. Route 666
  9. Scapegoat
  10. Bone Machine
  • Matt Difabio
  • Doug Rush
  • Bill Mezick
  • John Sasso


Behind Eyes Of Hatred  
2004 Crash Music
  1. A View From Nowhere
  2. Cold As Stone
  3. Retribution
  4. In Sequence
  5. Hollowed Out
  6. One Bullet
  7. I Of The Enemy
  8. The Needle
  9. The Hurt That Never Ends
  10. Badlands
  11. Shades Of Things To Come
  • Matt Difabio
  • Doug Rush
  • Bill Mezick
  • Jason Dunkerley
  • Matt Thompson


On Broken Wings  
2007 Crash Music
  1. My Own Worst Enemy
  2. Sea Of Inequity
  3. The Reason
  4. Never Waste A Minute
  5. Throes Of Man
  6. 10203
  7. The Killing Floor
  8. Live Without Regret
  9. That Look In Your Eyes
  10. Final Breath
  11. Uprise
  12. Imperfect Fit (live)
  13. Hollowed Out (live)
  14. One Bullet (live)
  15. Scapegoat (live)
  16. Bone Machine (live)
  • Matt Difabio
  • Dan Loughry
  • Bill Mezick
  • Jason Dunkerley
  • Darrin Patrick


IV  
2011 Goomba
  1. Echoes Of The Past
  2. What Have I
  3. Letting Go
  4. Diabolical
  5. Leviathan Smiles
  6. Auctioneer of Souls
  7. Hands of the Wicked
  8. The Wake of Betrayal
  9. Samsara
  10. Spirit Crusher (bonus track)
  11. The Hurt That Never Ends (bonus track)
  • Matt Difabio
  • John Ruszin III
  • Jeff Kalber
  • Adam Sagan


Single Bullet Theory  COMPILATION
2014
  1. Crawl
  2. Abduction
  3. The Hurt That Never Ends
  4. Retribution
  5. Hollowed Out
  6. Leave My Faith
  7. Diesel and Dust
  8. Edge of Broken
  9. Touching Ground
  10. Detonate
  11. Auctioneer of Souls
  12. Spirit Crusher (Death cover)
  13. Diabolical
  14. Leviathan Smiles (godzilla smash remix)


Divine Ways Of Chaos  
2018 independent
  1. All the Same
  2. Fire from the Sky
  3. The Arena
  4. Bleeding for You
  5. Into the Afterglow
  6. Last Train Out
  7. Born of Revolution
  8. Divine Ways of Chaos
  9. Damnation
  10. Paralyzed
  • Matt Difabio
  • Rich Gulczynski
  • Harry Lannon
  • Patrike Brose
  • Jeff Kalber
  • Justin Arman



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