Bizarro Single-Action Calibers — GMP # 161
This discussion explores the surprising versatility of single-action revolvers, highlighting their ability to chamber and fire cartridges that headspace on the case mouth, unlike most double-action revolvers. The conversation delves into specific examples like 9mm and .45 ACP in single-action platforms, emphasizing the engineering considerations for such conversions and the potential for creative ammunition use, particularly for reloaders.













