The .500 Maximum, also known as .500 Linebaugh Maximum and .500 Linebaugh Long, is a revolver cartridge developed by John Linebaugh. Only a small number of custom made 5-shot single action revolvers, such as the BMF .500 Maximum manufactured by Gary Reeder Custom Guns, the Ruger Bowen .500 Maximum manufactured by Bowen Classic Arms Corporation and revolvers manufactured by John Linebaugh or Jack Huntington, are being chambered for this round, with a barrel length of up to 6.5" with no muzzle brake or ports.
|Place of origin||United States|
|Bullet diameter||0.512 in (13.0 mm)|
|Rim diameter||0.600 in (15.2 mm)|
|Case length||1.610 in (40.9 mm)|
|Test barrel length: 5"|
Source(s): Tafin Tests, Tafin Tests
- "Taffin Tests Load Data (400 gr, 407 gr, 420 gr, 425 gr, 435 gr, 450 gr)". Archived from the original on 2011-07-26. Retrieved 2010-08-26.
- "Taffin Tests Load Data (580 gr)". Archived from the original on 2010-11-25. Retrieved 2010-08-26.